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De Francesco A, Formisano F, Scaccia L, Guarini E, Bafile U, González MA, Alatas A, Lynch ST, Cunsolo A. Fingerprints of hydrogen bonding in the terahertz dynamics of ethanol and water: An inelastic x-ray scattering study. J Chem Phys 2023; 159:244501. [PMID: 38131485 DOI: 10.1063/5.0180961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023] Open
Abstract
We used inelastic x-ray scattering methods to measure the terahertz spectrum of density fluctuations of ethanol in both liquid and solid phases. The results of a Bayesian inference-based lineshape analysis with a multiple excitation model and the comparison with a previous similar analysis on water indicate that the different structures induced by hydrogen bonds in ethanol and water have a profound influence on the respective dynamic responses, the latter being characterized by longer living and better resolved high-frequency acoustic excitations. In addition, we compare these findings with those obtained with an alternative approach based on the exponential expansion theory and ensuring sum rules fulfillment, demonstrating that the model's choice directly impacts the number of spectral modes detected.
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Affiliation(s)
- A De Francesco
- CNR-IOM and INSIDE@ILL c/o Operative Group in Grenoble (OGG), F-38042 and Institut Laue Langevin, F-38042 Grenoble, France
| | - F Formisano
- CNR-IOM and INSIDE@ILL c/o Operative Group in Grenoble (OGG), F-38042 and Institut Laue Langevin, F-38042 Grenoble, France
| | - L Scaccia
- Dipartimento di Economia e Diritto, Università di Macerata, via Crescimbeni 20, 62100 Macerata, Italy
| | - E Guarini
- Dipartimento di Fisica e Astronomia, Università di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino, Italy
| | - U Bafile
- Consiglio Nazionale delle Ricerche, Istituto di Fisica Applicata "Nello Carrara", via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy
| | - M A González
- Institut Laue Langevin, 72 Avenue des Martyrs, F-38042 Grenoble, France
| | - A Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S T Lynch
- Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706, USA
| | - A Cunsolo
- Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706, USA
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2
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Miao H, Zhang TT, Li HX, Fabbris G, Said AH, Tartaglia R, Yilmaz T, Vescovo E, Yin JX, Murakami S, Feng XL, Jiang K, Wu XL, Wang AF, Okamoto S, Wang YL, Lee HN. Signature of spin-phonon coupling driven charge density wave in a kagome magnet. Nat Commun 2023; 14:6183. [PMID: 37793998 PMCID: PMC10550957 DOI: 10.1038/s41467-023-41957-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 09/21/2023] [Indexed: 10/06/2023] Open
Abstract
The intertwining between spin, charge, and lattice degrees of freedom can give rise to unusual macroscopic quantum states, including high-temperature superconductivity and quantum anomalous Hall effects. Recently, a charge density wave (CDW) has been observed in the kagome antiferromagnet FeGe, indicative of possible intertwining physics. An outstanding question is that whether magnetic correlation is fundamental for the spontaneous spatial symmetry breaking orders. Here, utilizing elastic and high-resolution inelastic x-ray scattering, we observe a c-axis superlattice vector that coexists with the 2[Formula: see text]2[Formula: see text]1 CDW vectors in the kagome plane. Most interestingly, between the magnetic and CDW transition temperatures, the phonon dynamical structure factor shows a giant phonon-energy hardening and a substantial phonon linewidth broadening near the c-axis wavevectors, both signaling the spin-phonon coupling. By first principles and model calculations, we show that both the static spin polarization and dynamic spin excitations intertwine with the phonon to drive the spatial symmetry breaking in FeGe.
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Affiliation(s)
- H Miao
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.
| | - T T Zhang
- Department of Physics, Tokyo Institute of Technology, Okayama, Meguro-ku, Tokyo, Japan
| | - H X Li
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
- Advanced Materials Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, China
| | - G Fabbris
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - A H Said
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - R Tartaglia
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
- "Gleb Wataghin" Institute of Physics, University of Campinas, Campinas, São Paulo, Brazil
| | - T Yilmaz
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York, USA
| | - E Vescovo
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York, USA
| | - J-X Yin
- Laboratory for Quantum Emergence, Department of Physics, Southern University of Science and Technology, Shenzhen, China
| | - S Murakami
- Department of Physics, Tokyo Institute of Technology, Okayama, Meguro-ku, Tokyo, Japan
| | - X L Feng
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - K Jiang
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - X L Wu
- Low Temperature Physics Laboratory, College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing, China
| | - A F Wang
- Low Temperature Physics Laboratory, College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing, China.
| | - S Okamoto
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.
| | - Y L Wang
- School of Emerging Technology, University of Science and Technology of China, Hefei, Anhui, China.
| | - H N Lee
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
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3
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De Francesco A, Scaccia L, Formisano F, Guarini E, Bafile U, Nykypanchuk D, Alatas A, Li M, Lynch ST, Cunsolo A. The Effect of Embedded Nanoparticles on the Phonon Spectrum of Ice: An Inelastic X-ray Scattering Study. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:918. [PMID: 36903796 PMCID: PMC10005414 DOI: 10.3390/nano13050918] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/19/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
As a contribution to the ongoing effort toward high-frequency sound manipulation in composite materials, we use Inelastic X-ray Scattering to probe the phonon spectrum of ice, either in a pure form or with a sparse amount of nanoparticles embedded in it. The study aims at elucidating the ability of nanocolloids to condition the collective atomic vibrations of the surrounding environment. We observe that a nanoparticle concentration of about 1 % in volume is sufficient to visibly affect the phonon spectrum of the icy substrate, mainly canceling its optical modes and adding nanoparticle phonon excitations to it. We highlight this phenomenon thanks to the lineshape modeling based on a Bayesian inference, which enables us to capture the finest detail of the scattering signal. The results of this study can empower new routes toward the shaping of sound propagation in materials through the control of their structural heterogeneity.
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Affiliation(s)
- Alessio De Francesco
- CNR-IOM & INSIDE@ILL c/o Operative Group in Grenoble (OGG), F-38042 Grenoble, France
- Institut Laue-Langevin (ILL), F-38042 Grenoble, France
| | - Luisa Scaccia
- Dipartimento di Economia e Diritto, Università di Macerata, Via Crescimbeni 20, I-62100 Macerata, Italy
| | - Ferdinando Formisano
- CNR-IOM & INSIDE@ILL c/o Operative Group in Grenoble (OGG), F-38042 Grenoble, France
- Institut Laue-Langevin (ILL), F-38042 Grenoble, France
| | - Eleonora Guarini
- Dipartimento di Fisica e Astronomia, Università di Firenze, Via G. Sansone 1, I-50019 Sesto Fiorentino, Italy
| | - Ubaldo Bafile
- Consiglio Nazionale delle Ricerche, Istituto di Fisica Applicata ”Nello Carrara”, Via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy
| | - Dmytro Nykypanchuk
- Brookhaven National Laboratory-National Synchrotron Light Source-NSLS II, P.O. Box 5000, Upton, NY 11973, USA
| | - Ahmet Alatas
- Argonne National Laboratory, Advanced Photon Source, P.O. Box 5000, Upton, NY 11973, USA
| | - Mingda Li
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Scott T. Lynch
- Department of Physics, University of Wisconsin—Madison, 1150 University Avenue, Madison, WI 53706, USA
| | - Alessandro Cunsolo
- Department of Physics, University of Wisconsin—Madison, 1150 University Avenue, Madison, WI 53706, USA
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4
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Li S, Qin Z, Wu H, Li M, Kunz M, Alatas A, Kavner A, Hu Y. Anomalous thermal transport under high pressure in boron arsenide. Nature 2022; 612:459-464. [PMID: 36418403 DOI: 10.1038/s41586-022-05381-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 09/22/2022] [Indexed: 11/25/2022]
Abstract
High pressure represents extreme environments and provides opportunities for materials discovery1-8. Thermal transport under high hydrostatic pressure has been investigated for more than 100 years and all measurements of crystals so far have indicated a monotonically increasing lattice thermal conductivity. Here we report in situ thermal transport measurements in the newly discovered semiconductor crystal boron arsenide, and observe an anomalous pressure dependence of the thermal conductivity. We use ultrafast optics, Raman spectroscopy and inelastic X-ray scattering measurements to examine the phonon bandstructure evolution of the optical and acoustic branches, as well as thermal conductivity under varied temperatures and pressures up to 32 gigapascals. Using atomistic theory, we attribute the anomalous high-pressure behaviour to competitive heat conduction channels from interactive high-order anharmonicity physics inherent to the unique phonon bandstructure. Our study verifies ab initio theory calculations and we show that the phonon dynamics-resulting from competing three-phonon and four-phonon scattering processes-are beyond those expected from classical models and seen in common materials. This work uses high-pressure spectroscopy combined with atomistic theory as a powerful approach to probe complex phonon physics and provide fundamental insights for understanding microscopic energy transport in materials of extreme properties.
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Affiliation(s)
- Suixuan Li
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Zihao Qin
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Huan Wu
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Man Li
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Martin Kunz
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - Abby Kavner
- Department of Earth and Space Sciences, University of California, Los Angeles, Los Angeles, CA, USA
| | - Yongjie Hu
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
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Altering Terahertz Sound Propagation in a Liquid upon Nanoparticle Immersion. NANOMATERIALS 2022; 12:nano12142401. [PMID: 35889625 PMCID: PMC9318512 DOI: 10.3390/nano12142401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/25/2022]
Abstract
One of the grand challenges of new generation Condensed Matter physicists is the development of novel devices enabling the control of sound propagation at terahertz frequency. Indeed, phonon excitations in this frequency window are the leading conveyor of heat transfer in insulators. Their manipulation is thus critical to implementing heat management based on the structural design. To explore the possibility of controlling the damping of sound waves, we used high spectral contrast Inelastic X-ray Scattering (IXS) to comparatively study terahertz acoustic damping in a dilute suspension of 50 nm nanospheres in glycerol and on pure glycerol. Bayesian inference-based modeling of measured spectra indicates that, at sufficiently large distances, the spectral contribution of collective modes in the glycerol suspension becomes barely detectable due to the enhanced damping, the weakening, and the slight softening of the dominant acoustic mode.
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6
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Klimova N, Snigireva I, Snigirev A, Yefanov O. Using diffraction losses of X-rays in a single crystal for determination of its lattice parameters as well as for monochromator calibration. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:369-376. [PMID: 35254299 PMCID: PMC8900831 DOI: 10.1107/s1600577521013667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
A way has been developed to measure the unit-cell parameters of a single crystal just from an energy scan with X-rays, even when the exact energy of the X-rays is not well defined due to an error in the pitch angle of the monochromator. The precision of this measurement reaches da/a ∼ 1 × 10-5. The method is based on the analysis of diffraction losses of the beam, transmitted through a single crystal (the so-called `glitch effect'). This method can be easily applied to any transmissive X-ray optical element made of single crystals (for example, X-ray lenses). The only requirements are the possibility to change the energy of the generated X-ray beam and some intensity monitor to measure the transmitted intensity. The method is agnostic to the error in the monochromator tuning and it can even be used for determination of the absolute pitch (or 2θ) angle of the monochromator. Applying the same method to a crystal with well known lattice parameters allows determination of the exact cell parameters of the monochromator at any energy.
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Affiliation(s)
- Nataliya Klimova
- International Science and Research Center ‘Coherent X-ray Optics for Megascience Facilities’, Immanuel Kant Baltic Federal University, Kaliningrad 236022, Russian Federation
| | - Irina Snigireva
- European Synchrotron Radiation Facility (ESRF), BP 220, 38043 Grenoble, France
| | - Anatoly Snigirev
- International Science and Research Center ‘Coherent X-ray Optics for Megascience Facilities’, Immanuel Kant Baltic Federal University, Kaliningrad 236022, Russian Federation
| | - Oleksandr Yefanov
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
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7
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Hurley DH, El-Azab A, Bryan MS, Cooper MWD, Dennett CA, Gofryk K, He L, Khafizov M, Lander GH, Manley ME, Mann JM, Marianetti CA, Rickert K, Selim FA, Tonks MR, Wharry JP. Thermal Energy Transport in Oxide Nuclear Fuel. Chem Rev 2021; 122:3711-3762. [PMID: 34919381 DOI: 10.1021/acs.chemrev.1c00262] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To efficiently capture the energy of the nuclear bond, advanced nuclear reactor concepts seek solid fuels that must withstand unprecedented temperature and radiation extremes. In these advanced fuels, thermal energy transport under irradiation is directly related to reactor performance as well as reactor safety. The science of thermal transport in nuclear fuel is a grand challenge as a result of both computational and experimental complexities. Here we provide a comprehensive review of thermal transport research on two actinide oxides: one currently in use in commercial nuclear reactors, uranium dioxide (UO2), and one advanced fuel candidate material, thorium dioxide (ThO2). In both materials, heat is carried by lattice waves or phonons. Crystalline defects caused by fission events effectively scatter phonons and lead to a degradation in fuel performance over time. Bolstered by new computational and experimental tools, researchers are now developing the foundational work necessary to accurately model and ultimately control thermal transport in advanced nuclear fuels. We begin by reviewing research aimed at understanding thermal transport in perfect single crystals. The absence of defects enables studies that focus on the fundamental aspects of phonon transport. Next, we review research that targets defect generation and evolution. Here the focus is on ion irradiation studies used as surrogates for damage caused by fission products. We end this review with a discussion of modeling and experimental efforts directed at predicting and validating mesoscale thermal transport in the presence of irradiation defects. While efforts in these research areas have been robust, challenging work remains in developing holistic tools to capture and predict thermal energy transport across widely varying environmental conditions.
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Affiliation(s)
- David H Hurley
- Idaho National Laboratory, 1955 North Fremont Avenue, Idaho Falls, Idaho 83415, United States
| | - Anter El-Azab
- School of Materials Engineering, Purdue University, 701 West Stadium Avenue, West Lafayette, Indiana 47907, United States
| | - Matthew S Bryan
- Materials Science and Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
| | - Michael W D Cooper
- Materials Science and Technology Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, United States
| | - Cody A Dennett
- Idaho National Laboratory, 1955 North Fremont Avenue, Idaho Falls, Idaho 83415, United States
| | - Krzysztof Gofryk
- Idaho National Laboratory, 1955 North Fremont Avenue, Idaho Falls, Idaho 83415, United States
| | - Lingfeng He
- Idaho National Laboratory, 1955 North Fremont Avenue, Idaho Falls, Idaho 83415, United States
| | - Marat Khafizov
- Department of Mechanical and Aerospace Engineering, The Ohio State University, 201 West 19th Ave, Columbus, Ohio 43210, United States
| | - Gerard H Lander
- European Commission, Joint Research Center, Postfach 2340, D-76125 Karlsruhe, Germany
| | - Michael E Manley
- Materials Science and Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
| | - J Matthew Mann
- U.S. Air Force Research Laboratory, Sensors Directorate, 2241 Avionics Circle, Wright Patterson AFB, Ohio 45433, United States
| | - Chris A Marianetti
- Department of Applied Physics and Applied Mathematics, Columbia University, 500 West 120th Street, New York, New York 10027, United States
| | - Karl Rickert
- KBR, 2601 Mission Point Boulevard, Suite 300, Dayton, Ohio 45431, United States
| | - Farida A Selim
- Department of Physics and Astronomy, Bowling Green State University, 705 Ridge Street, Bowling Green, Ohio 43403, United States
| | - Michael R Tonks
- Department of Materials Science and Engineering, University of Florida, 158 Rhines Hall, Gainesville, Florida 32611, United States
| | - Janelle P Wharry
- School of Materials Engineering, Purdue University, 701 West Stadium Avenue, West Lafayette, Indiana 47907, United States
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De Francesco A, Scaccia L, Formisano F, Guarini E, Bafile U, Maccarini M, Zhang Y, Nykypanchuck D, Alatas A, Cunsolo A. The damping of terahertz acoustic modes in aqueous nanoparticle suspensions. Sci Rep 2021; 11:20110. [PMID: 34635734 PMCID: PMC8505432 DOI: 10.1038/s41598-021-99503-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 09/20/2021] [Indexed: 11/23/2022] Open
Abstract
In this work, we investigate the possibility of controlling the acoustic damping in a liquid when nanoparticles are suspended in it. To shed light on this topic, we performed Inelastic X-Ray Scattering (IXS) measurements of the terahertz collective dynamics of aqueous suspensions of nanospheres of various materials, size, and relative concentration, either charged or neutral. A Bayesian analysis of measured spectra indicates that the damping of the two acoustic modes of water increases upon nanoparticle immersion. This effect seems particularly pronounced for the longitudinal acoustic mode, which, whenever visible at all, rapidly damps off when increasing the exchanged wavevector. Results also indicate that the observed effect strongly depends on the material the immersed nanoparticles are made of.
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Affiliation(s)
- Alessio De Francesco
- CNR-IOM & INSIDE@ILL c/o Operative Group in Grenoble (OGG), 38042, Grenoble, France
- Institut Laue-Langevin (ILL), 38042, Grenoble, France
| | - Luisa Scaccia
- Dipartimento di Economia e Diritto, Università di Macerata, Via Crescimbeni 20, 62100, Macerata, Italy
| | - Ferdinando Formisano
- CNR-IOM & INSIDE@ILL c/o Operative Group in Grenoble (OGG), 38042, Grenoble, France
- Institut Laue-Langevin (ILL), 38042, Grenoble, France
| | - Eleonora Guarini
- Dipartimento di Fisica e Astronomia, Università di Firenze, via G. Sansone 1, 50019, Sesto Fiorentino, Italy
| | - Ubaldo Bafile
- Consiglio Nazionale delle Ricerche, Istituto di Fisica Applicata "Nello Carrara", via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - Marco Maccarini
- Laboratoire TIMC/IMAG UMR CNRS 5525, Université Grenoble-Alpes, 38000, Grenoble, France
| | - Yugang Zhang
- Brookhaven National Laboratory, Center for Functional Nanomaterials, P.O. Box 5000, Upton, 11973, NY, USA
| | - Dmytro Nykypanchuck
- Brookhaven National Laboratory, Center for Functional Nanomaterials, P.O. Box 5000, Upton, 11973, NY, USA
| | - Ahmet Alatas
- Argonne National Laboratory, Advanced Photon Source, P.O. Box 5000, Upton, 11973, NY, USA
| | - Alessandro Cunsolo
- Department of Physics, University of Wisconsin at Madison, 1150 University Avenue, Madison, WI, USA.
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9
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Nguyen T, Andrejevic N, Po HC, Song Q, Tsurimaki Y, Drucker NC, Alatas A, Alp EE, Leu BM, Cunsolo A, Cai YQ, Wu L, Garlow JA, Zhu Y, Lu H, Gossard AC, Puretzky AA, Geohegan DB, Huang S, Li M. Signature of Many-Body Localization of Phonons in Strongly Disordered Superlattices. NANO LETTERS 2021; 21:7419-7425. [PMID: 34314183 DOI: 10.1021/acs.nanolett.1c01905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Many-body localization (MBL) has attracted significant attention because of its immunity to thermalization, role in logarithmic entanglement entropy growth, and opportunities to reach exotic quantum orders. However, experimental realization of MBL in solid-state systems has remained challenging. Here, we report evidence of a possible phonon MBL phase in disordered GaAs/AlAs superlattices. Through grazing-incidence inelastic X-ray scattering, we observe a strong deviation of the phonon population from equilibrium in samples doped with ErAs nanodots at low temperature, signaling a departure from thermalization. This behavior occurs within finite phonon energy and wavevector windows, suggesting a localization-thermalization crossover. We support our observation by proposing a theoretical model for the effective phonon Hamiltonian in disordered superlattices, and showing that it can be mapped exactly to a disordered 1D Bose-Hubbard model with a known MBL phase. Our work provides momentum-resolved experimental evidence of phonon localization, extending the scope of MBL to disordered solid-state systems.
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Affiliation(s)
- Thanh Nguyen
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Nina Andrejevic
- Department of Material Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Hoi Chun Po
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Qichen Song
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yoichiro Tsurimaki
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Nathan C Drucker
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Esen E Alp
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Bogdan M Leu
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Department of Physics, Miami University, Oxford, Ohio 45056, United States
| | - Alessandro Cunsolo
- Department of Physics, University of Wisconsin at Madison, Madison, Wisconsin 53706, United States
| | - Yong Q Cai
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Lijun Wu
- Condensed Matter Physics and Material Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Joseph A Garlow
- Condensed Matter Physics and Material Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Yimei Zhu
- Condensed Matter Physics and Material Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Hong Lu
- College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
| | - Arthur C Gossard
- Materials Department, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Alexander A Puretzky
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - David B Geohegan
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Shengxi Huang
- Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Mingda Li
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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10
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Wu S, Song Y, He Y, Frano A, Yi M, Chen X, Uchiyama H, Alatas A, Said AH, Wang L, Wolf T, Meingast C, Birgeneau RJ. Short-Range Nematic Fluctuations in Sr_{1-x}Na_{x}Fe_{2}As_{2} Superconductors. PHYSICAL REVIEW LETTERS 2021; 126:107001. [PMID: 33784111 DOI: 10.1103/physrevlett.126.107001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
Interactions between nematic fluctuations, magnetic order and superconductivity are central to the physics of iron-based superconductors. Here we report on in-plane transverse acoustic phonons in hole-doped Sr_{1-x}Na_{x}Fe_{2}As_{2} measured via inelastic x-ray scattering, and extract both the nematic susceptibility and the nematic correlation length. By a self-contained method of analysis, for the underdoped (x=0.36) sample, which harbors a magnetically ordered tetragonal phase, we find it hosts a short nematic correlation length ξ∼10 Å and a large nematic susceptibility χ_{nem}. The optimal-doped (x=0.55) sample exhibits weaker phonon softening effects, indicative of both reduced ξ and χ_{nem}. Our results suggest short-range nematic fluctuations may favor superconductivity, placing emphasis on the nematic correlation length for understanding the iron-based superconductors.
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Affiliation(s)
- Shan Wu
- Department of Physics, University of California, Berkeley, California 94720, USA
- Material Sciences Division, Lawrence Berkeley National Lab, Berkeley, California 94720, USA
| | - Yu Song
- Department of Physics, University of California, Berkeley, California 94720, USA
- Material Sciences Division, Lawrence Berkeley National Lab, Berkeley, California 94720, USA
| | - Yu He
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - Alex Frano
- Department of Physics, University of California, San Diego, California 92093, USA
| | - Ming Yi
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
| | - Xiang Chen
- Department of Physics, University of California, Berkeley, California 94720, USA
- Material Sciences Division, Lawrence Berkeley National Lab, Berkeley, California 94720, USA
| | - Hiroshi Uchiyama
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Ayman H Said
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Liran Wang
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
| | - Thomas Wolf
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
| | - Christoph Meingast
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
| | - Robert J Birgeneau
- Department of Physics, University of California, Berkeley, California 94720, USA
- Material Sciences Division, Lawrence Berkeley National Lab, Berkeley, California 94720, USA
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11
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Chang YY, Tsai YW, Weng SC, Chen SL, Chang SL. Integrated optical chip for a high-resolution, single-resonance-mode x-ray monochromator system. OPTICS LETTERS 2021; 46:416-419. [PMID: 33449043 DOI: 10.1364/ol.409833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 12/14/2020] [Indexed: 06/12/2023]
Abstract
An integrated optical chip that minimizes the size of the energy-tuning single-resonance-mode x-ray monochromator system into a 3cm×5cm silicon wafer is proposed. A Fabry-Perot x-ray resonator and two back-reflecting Si mirrors are employed on the wafer as the optical components, where Si(12 4 0) back reflection is used for both Fabry-Perot resonance and re-diffraction of the x-ray beams from the resonator in the incident direction. We can achieve an energy bandwidth of 3.4 meV in single-mode x rays and tune the energy by temperature variation. Such Si chips can be readily employed at the synchrotron beamlines and conventional x-ray laboratories for high-resolution investigations.
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12
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Sun B, Niu S, Hermann RP, Moon J, Shulumba N, Page K, Zhao B, Thind AS, Mahalingam K, Milam-Guerrero J, Haiges R, Mecklenburg M, Melot BC, Jho YD, Howe BM, Mishra R, Alatas A, Winn B, Manley ME, Ravichandran J, Minnich AJ. High frequency atomic tunneling yields ultralow and glass-like thermal conductivity in chalcogenide single crystals. Nat Commun 2020; 11:6039. [PMID: 33247101 PMCID: PMC7699621 DOI: 10.1038/s41467-020-19872-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 10/25/2020] [Indexed: 11/08/2022] Open
Abstract
Crystalline solids exhibiting glass-like thermal conductivity have attracted substantial attention both for fundamental interest and applications such as thermoelectrics. In most crystals, the competition of phonon scattering by anharmonic interactions and crystalline imperfections leads to a non-monotonic trend of thermal conductivity with temperature. Defect-free crystals that exhibit the glassy trend of low thermal conductivity with a monotonic increase with temperature are desirable because they are intrinsically thermally insulating while retaining useful properties of perfect crystals. However, this behavior is rare, and its microscopic origin remains unclear. Here, we report the observation of ultralow and glass-like thermal conductivity in a hexagonal perovskite chalcogenide single crystal, BaTiS3, despite its highly symmetric and simple primitive cell. Elastic and inelastic scattering measurements reveal the quantum mechanical origin of this unusual trend. A two-level atomic tunneling system exists in a shallow double-well potential of the Ti atom and is of sufficiently high frequency to scatter heat-carrying phonons up to room temperature. While atomic tunneling has been invoked to explain the low-temperature thermal conductivity of solids for decades, our study establishes the presence of sub-THz frequency tunneling systems even in high-quality, electrically insulating single crystals, leading to anomalous transport properties well above cryogenic temperatures.
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Affiliation(s)
- Bo Sun
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125, USA
- Tsinghua-Berkeley Shenzhen Institute and Tsinghua Shenzhen International Graduate School, Guangdong Provincial Key Laboratory of Thermal Management Engineering and Materials, Tsinghua University, 518055, Shenzhen, Guangdong, China
| | - Shanyuan Niu
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA
- School of Earth, Energy and Environmental Sciences, Stanford University, Stanford, CA, 94305, USA
| | - Raphael P Hermann
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Jaeyun Moon
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Nina Shulumba
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Katharine Page
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Boyang Zhao
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA
| | - Arashdeep S Thind
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Krishnamurthy Mahalingam
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Dayton, OH, USA
| | - JoAnna Milam-Guerrero
- Department of Chemistry, University of Southern California, Los Angeles, CA, 90089, USA
| | - Ralf Haiges
- Department of Chemistry, University of Southern California, Los Angeles, CA, 90089, USA
- Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, CA, 90089, USA
| | - Matthew Mecklenburg
- Core Center of Excellence in Nano Imaging, University of Southern California, Los Angeles, CA, 90089, USA
| | - Brent C Melot
- Department of Chemistry, University of Southern California, Los Angeles, CA, 90089, USA
| | - Young-Dahl Jho
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - Brandon M Howe
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Dayton, OH, USA
| | - Rohan Mishra
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Barry Winn
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Michael E Manley
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
| | - Jayakanth Ravichandran
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA.
- Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA, 90089, USA.
| | - Austin J Minnich
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125, USA.
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13
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De Francesco A, Scaccia L, Formisano F, Guarini E, Bafile U, Maccarini M, Alatas A, Cai YQ, Nykypanchuk D, Cunsolo A. Onset of interfacial waves in the terahertz spectrum of a nanoparticle suspension. Phys Rev E 2020; 102:022601. [PMID: 32942392 DOI: 10.1103/physreve.102.022601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/13/2020] [Indexed: 11/06/2022]
Abstract
We used inelastic x-ray scattering to gain insight into the complex terahertz dynamics of a diluted Au-nanoparticle suspension in glycerol. We observe that, albeit sparse, Au nanoparticles leave clear signatures on the dynamic response of the system, the main one being an additional mode propagating at the nanoparticle-glycerol interface. A Bayesian inferential analysis of the line shape reveals that such a mode, at variance with conventional acoustic modes, keeps a hydrodynamiclike behavior well beyond the continuous limit and down to subnanometer distances.
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Affiliation(s)
- Alessio De Francesco
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Operative Group in Grenoble (OGG) F-38042 Grenoble, France.,Institut Laue-Langevin (ILL), F-38042 Grenoble, France
| | - Luisa Scaccia
- Dipartimento di Economia e Diritto, Università di Macerata, Via Crescimbeni 20, 62100 Macerata, Italy
| | - Ferdinando Formisano
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Operative Group in Grenoble (OGG) F-38042 Grenoble, France.,Institut Laue-Langevin (ILL), F-38042 Grenoble, France
| | - Eleonora Guarini
- Dipartimento di Fisica e Astronomia, Università di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino, Italy
| | - Ubaldo Bafile
- Consiglio Nazionale delle Ricerche, Istituto di Fisica Applicata "Nello Carrara," via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy
| | - Marco Maccarini
- Université Grenoble-Alpes, CNRS, Grenoble INP, TIMC-IMAG, 38000 Grenoble, France
| | - Ahmet Alatas
- Argonne National Laboratory, Advanced Photon Source, P.O. Box 5000, Upton, New York 11973, USA
| | - Yong Q Cai
- Brookhaven National Laboratory, National Synchrotron Light Source, NSLS II, P.O. Box 5000, Upton, New York 11973, USA
| | - Dmytro Nykypanchuk
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Alessandro Cunsolo
- Brookhaven National Laboratory, National Synchrotron Light Source, NSLS II, P.O. Box 5000, Upton, New York 11973, USA
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14
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Nguyen T, Han F, Andrejevic N, Pablo-Pedro R, Apte A, Tsurimaki Y, Ding Z, Zhang K, Alatas A, Alp EE, Chi S, Fernandez-Baca J, Matsuda M, Tennant DA, Zhao Y, Xu Z, Lynn JW, Huang S, Li M. Topological Singularity Induced Chiral Kohn Anomaly in a Weyl Semimetal. PHYSICAL REVIEW LETTERS 2020; 124:236401. [PMID: 32603171 PMCID: PMC7935413 DOI: 10.1103/physrevlett.124.236401] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/13/2020] [Indexed: 06/11/2023]
Abstract
The electron-phonon interaction (EPI) is instrumental in a wide variety of phenomena in solid-state physics, such as electrical resistivity in metals, carrier mobility, optical transition, and polaron effects in semiconductors, lifetime of hot carriers, transition temperature in BCS superconductors, and even spin relaxation in diamond nitrogen-vacancy centers for quantum information processing. However, due to the weak EPI strength, most phenomena have focused on electronic properties rather than on phonon properties. One prominent exception is the Kohn anomaly, where phonon softening can emerge when the phonon wave vector nests the Fermi surface of metals. Here we report a new class of Kohn anomaly in a topological Weyl semimetal (WSM), predicted by field-theoretical calculations, and experimentally observed through inelastic x-ray and neutron scattering on WSM tantalum phosphide. Compared to the conventional Kohn anomaly, the Fermi surface in a WSM exhibits multiple topological singularities of Weyl nodes, leading to a distinct nesting condition with chiral selection, a power-law divergence, and non-negligible dynamical effects. Our work brings the concept of the Kohn anomaly into WSMs and sheds light on elucidating the EPI mechanism in emergent topological materials.
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Affiliation(s)
- Thanh Nguyen
- Department of Nuclear Science and Engineering, MIT, Cambridge, Massachusetts 02139, USA
| | - Fei Han
- Department of Nuclear Science and Engineering, MIT, Cambridge, Massachusetts 02139, USA
| | - Nina Andrejevic
- Department of Materials Science and Engineering, MIT, Cambridge, Massachusetts 02139, USA
| | - Ricardo Pablo-Pedro
- Department of Nuclear Science and Engineering, MIT, Cambridge, Massachusetts 02139, USA
| | - Anuj Apte
- Department of Physics, MIT, Cambridge, Massachusetts 02139, USA
| | - Yoichiro Tsurimaki
- Department of Mechanical Engineering, MIT, Cambridge, Massachusetts 02139, USA
| | - Zhiwei Ding
- Department of Materials Science and Engineering, MIT, Cambridge, Massachusetts 02139, USA
| | - Kunyan Zhang
- Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Ercan E. Alp
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Songxue Chi
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Jaime Fernandez-Baca
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Masaaki Matsuda
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - David Alan Tennant
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Yang Zhao
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USA
| | - Zhijun Xu
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USA
| | - Jeffrey W. Lynn
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Shengxi Huang
- Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Mingda Li
- Department of Nuclear Science and Engineering, MIT, Cambridge, Massachusetts 02139, USA
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15
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Liu H, Yang C, Wei B, Jin L, Alatas A, Said A, Tongay S, Yang F, Javey A, Hong J, Wu J. Anomalously Suppressed Thermal Conduction by Electron-Phonon Coupling in Charge-Density-Wave Tantalum Disulfide. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902071. [PMID: 32537392 PMCID: PMC7284197 DOI: 10.1002/advs.201902071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 03/15/2020] [Accepted: 03/18/2020] [Indexed: 06/11/2023]
Abstract
Charge and thermal transport in a crystal is carried by free electrons and phonons (quantized lattice vibration), the two most fundamental quasiparticles. Above the Debye temperature of the crystal, phonon-mediated thermal conductivity (κ L) is typically limited by mutual scattering of phonons, which results in κ L decreasing with inverse temperature, whereas free electrons play a negligible role in κ L. Here, an unusual case in charge-density-wave tantalum disulfide (1T-TaS2) is reported, in which κ L is limited instead by phonon scattering with free electrons, resulting in a temperature-independent κ L. In this system, the conventional phonon-phonon scattering is alleviated by its uniquely structured phonon dispersions, while unusually strong electron-phonon (e-ph) coupling arises from its Fermi surface strongly nested at wavevectors in which phonons exhibit Kohn anomalies. The unusual temperature dependence of thermal conduction is found as a consequence of these effects. The finding reveals new physics of thermal conduction, offers a unique platform to probe e-ph interactions, and provides potential ways to control heat flow in materials with free charge carriers. The temperature-independent thermal conductivity may also find thermal management application as a special thermal interface material between two systems when the heat conduction between them needs to be maintained at a constant level.
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Affiliation(s)
- Huili Liu
- Materials Sciences DivisionLawrence Berkeley National LaboratoryBerkeleyCA94720USA
- Department of Materials Science and EngineeringUniversity of CaliforniaBerkeleyCA94720USA
| | - Chao Yang
- School of Aerospace EngineeringBeijing Institute of TechnologyBeijing100081China
| | - Bin Wei
- School of Aerospace EngineeringBeijing Institute of TechnologyBeijing100081China
| | - Lei Jin
- Materials Sciences DivisionLawrence Berkeley National LaboratoryBerkeleyCA94720USA
- Department of Materials Science and EngineeringUniversity of CaliforniaBerkeleyCA94720USA
| | - Ahmet Alatas
- Advanced Photon SourceArgonne National LaboratoryLemontIL60439USA
| | - Ayman Said
- Advanced Photon SourceArgonne National LaboratoryLemontIL60439USA
| | - Sefaattin Tongay
- School for Engineering of Matter, Transport, and EnergyArizona State UniversityTempeAZ85287USA
| | - Fan Yang
- Department of Mechanical EngineeringStevens Institute of TechnologyHobokenNJ07030USA
| | - Ali Javey
- Materials Sciences DivisionLawrence Berkeley National LaboratoryBerkeleyCA94720USA
- Department of Electrical Engineering and Computer ScienceUniversity of CaliforniaBerkeleyCA94720USA
| | - Jiawang Hong
- School of Aerospace EngineeringBeijing Institute of TechnologyBeijing100081China
| | - Junqiao Wu
- Materials Sciences DivisionLawrence Berkeley National LaboratoryBerkeleyCA94720USA
- Department of Materials Science and EngineeringUniversity of CaliforniaBerkeleyCA94720USA
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16
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Said AH, Sinn H, Toellner TS, Alp EE, Gog T, Leu BM, Bean S, Alatas A. High-energy-resolution inelastic X-ray scattering spectrometer at beamline 30-ID of the Advanced Photon Source. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:827-835. [PMID: 32381787 PMCID: PMC7285690 DOI: 10.1107/s1600577520002854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 02/29/2020] [Indexed: 06/11/2023]
Abstract
Inelastic X-ray scattering is a powerful and versatile technique for studying lattice dynamics in materials of scientific and technological importance. In this article, the design and capabilities of the momentum-resolved high-energy-resolution inelastic X-ray spectrometer (HERIX) at beamline 30-ID of the Advanced Photon Source are reported. The instrument operates at 23.724 keV and has an energy resolution of 1.3-1.7 meV. It can accommodate momentum transfers of up to 72 nm-1, at a typical X-ray flux of 4.5 × 109 photons s-1 meV-1 at the sample. A suite of in situ sample environments are provided, including high pressure, static magnetic fields and uniaxial strains, all at high or cryogenic temperatures.
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Affiliation(s)
- Ayman H. Said
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Harald Sinn
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Thomas S. Toellner
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Ercan E. Alp
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Thomas Gog
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Bogdan M. Leu
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
- Department of Physics, Miami University, Oxford, OH 45056, USA
| | - Sunil Bean
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
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17
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De Francesco A, Scaccia L, Formisano F, Guarini E, Bafile U, Maccarini M, Alatas A, Cai YQ, Cunsolo A. The Terahertz Dynamics of an Aqueous Nanoparticle Suspension: An Inelastic X-ray Scattering Study. NANOMATERIALS 2020; 10:nano10050860. [PMID: 32365679 PMCID: PMC7711609 DOI: 10.3390/nano10050860] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 11/16/2022]
Abstract
We used the high-resolution Inelastic X-ray Scattering beamline of the Advanced Photon Source at Argonne National Laboratory to measure the terahertz spectrum of pure water and a dilute aqueous suspension of 15 nm diameter spherical Au nanoparticles (Au-NPs). We observe that, despite their sparse volume concentration of about 0.5%, the immersed NPs strongly influence the collective molecular dynamics of the hosting liquid. We investigate this effect through a Bayesian inference analysis of the spectral lineshape, which elucidates how terahertz transport properties of water change upon Au-NP immersion. In particular, we observe a nearly complete disappearance of the longitudinal acoustic mode and a mildly decreased ability to support shear wave propagation.
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Affiliation(s)
- Alessio De Francesco
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Operative Group in Grenoble (OGG), F-38042 Grenoble, France; (A.D.F.); (F.F.)
- Institut Laue-Langevin (ILL), F-38042 Grenoble, France
| | - Luisa Scaccia
- Dipartimento di Economia e Diritto, Università di Macerata, Via Crescimbeni 20, 62100 Macerata, Italy;
| | - Ferdinando Formisano
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Operative Group in Grenoble (OGG), F-38042 Grenoble, France; (A.D.F.); (F.F.)
- Institut Laue-Langevin (ILL), F-38042 Grenoble, France
| | - Eleonora Guarini
- Dipartimento di Fisica e Astronomia, Università di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino, Italy;
| | - Ubaldo Bafile
- Consiglio Nazionale delle Ricerche, Istituto di Fisica Applicata ”Nello Carrara”, via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy;
| | - Marco Maccarini
- Université Grenoble-Alpes - Laboratoire TIMC/IMAG UMR CNRS 5525, 38000 Grenoble, France;
| | - Ahmet Alatas
- Argonne National Laboratory, Advanced Photon Source, P.O. Box 5000 Upton, 11973 NY, USA;
| | - Yong Q. Cai
- Brookhaven National Laboratory-National Synchrotron Light Source-NSLS II, P.O. Box 5000, Upton, 11973 NY, USA;
| | - Alessandro Cunsolo
- Brookhaven National Laboratory-National Synchrotron Light Source-NSLS II, P.O. Box 5000, Upton, 11973 NY, USA;
- Correspondence: ; Tel.: +1-631-327-1927
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18
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Merritt AM, Weber F, Castellan JP, Wolf T, Ishikawa D, Said AH, Alatas A, Fernandes RM, Baron AQR, Reznik D. Nematic Correlation Length in Iron-Based Superconductors Probed by Inelastic X-Ray Scattering. PHYSICAL REVIEW LETTERS 2020; 124:157001. [PMID: 32357044 DOI: 10.1103/physrevlett.124.157001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 03/19/2020] [Indexed: 06/11/2023]
Abstract
Nematicity is ubiquitous in electronic phases of high-T_{c} superconductors, particularly in the Fe-based systems. We used inelastic x-ray scattering to extract the temperature-dependent nematic correlation length ξ from the anomalous softening of acoustic phonon modes in FeSe, underdoped Ba(Fe_{0.97}Co_{0.03})_{2}As_{2}, and optimally doped Ba(Fe_{0.94}Co_{0.06})_{2}As_{2}. In all cases, we find that ξ is well described by a power law (T-T_{0})^{-1/2} extending over a wide temperature range. Combined with the previously reported Curie-Weiss behavior of the nematic susceptibility, these results point to the mean-field character of the nematic transition, which we attribute to a sizable nematoelastic coupling that is likely detrimental to superconductivity.
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Affiliation(s)
- A M Merritt
- Department of Physics, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| | - F Weber
- Institute for Solid State Physics, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
| | - J-P Castellan
- Institute for Solid State Physics, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
- CEA Saclay, Laboratoire Léon Brillouin, F-91191 Gif sur Yvette, France
| | - Th Wolf
- Institute for Solid State Physics, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
| | - D Ishikawa
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo, Hyogo 679-5148 Japan
| | - A H Said
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - R M Fernandes
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - A Q R Baron
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo, Hyogo 679-5148 Japan
| | - D Reznik
- Department of Physics, University of Colorado at Boulder, Boulder, Colorado 80309, USA
- Center for Experiments on Quantum Materials, University of Colorado at Boulder, Boulder, Colorado 80309, USA
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19
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Abstract
Intrinsically low lattice thermal conductivity ([Formula: see text]) in superionic conductors is of great interest for energy conversion applications in thermoelectrics. Yet, the complex atomic dynamics leading to superionicity and ultralow thermal conductivity remain poorly understood. Here, we report a comprehensive study of the lattice dynamics and superionic diffusion in [Formula: see text] from energy- and momentum-resolved neutron and X-ray scattering techniques, combined with first-principles calculations. Our results settle unresolved questions about the lattice dynamics and thermal conduction mechanism in [Formula: see text] We find that the heat-carrying long-wavelength transverse acoustic (TA) phonons coexist with the ultrafast diffusion of Ag ions in the superionic phase, while the short-wavelength nondispersive TA phonons break down. Strong scattering of phonon quasiparticles by anharmonicity and Ag disorder are the origin of intrinsically low [Formula: see text] The breakdown of short-wavelength TA phonons is directly related to the Ag diffusion, with the vibrational spectral weight associated to Ag oscillations evolving into stochastic decaying fluctuations. Furthermore, the origin of fast ionic diffusion is shown to arise from extended flat basins in the energy landscape and collective hopping behavior facilitated by strong repulsion between Ag ions. These results provide fundamental insights into the complex atomic dynamics of superionic conductors.
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20
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Zhang TT, Miao H, Wang Q, Lin JQ, Cao Y, Fabbris G, Said AH, Liu X, Lei HC, Fang Z, Weng HM, Dean MPM. Phononic Helical Nodal Lines with PT Protection in MoB_{2}. PHYSICAL REVIEW LETTERS 2019; 123:245302. [PMID: 31922848 DOI: 10.1103/physrevlett.123.245302] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Indexed: 06/10/2023]
Abstract
While condensed matter systems host both fermionic and bosonic quasiparticles, reliably predicting and empirically verifying topological states is only mature for Fermionic electronic structures, leaving topological Bosonic excitations sporadically explored. This is unfortunate, as Bosonic systems such as phonons offer the opportunity to assess spinless band structures where nodal lines can be realized without invoking special additional symetries to protect against spin-orbit coupling. Here we combine first-principles calculations and meV-resolution inelastic x-ray scattering to demonstrate the first realization of parity-time reversal symmetry protected helical nodal lines in the phonon spectrum of MoB_{2}. This structure is unique to phononic systems as the spin-orbit coupling present in electronic systems tends to lift the degeneracy away from high-symmetry locations. Our study establishes a protocol to accurately identify topological Bosonic excitations, opening a new route to explore exotic topological states in crystalline materials.
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Affiliation(s)
- T T Zhang
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Department of Physics, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8551, Japan
- Tokodai Institute for Element Strategy, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - H Miao
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Q Wang
- Department of Physics and Beijing Key Laboratory of Opto-Electronic Functional Materials and Micro-devices, Renmin University of China, Beijing, China
| | - J Q Lin
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Y Cao
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - G Fabbris
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A H Said
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - X Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - H C Lei
- Department of Physics and Beijing Key Laboratory of Opto-Electronic Functional Materials and Micro-devices, Renmin University of China, Beijing, China
| | - Z Fang
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - H M Weng
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - M P M Dean
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
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21
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Ma H, Li C, Ma Y, Wang H, Rouse ZW, Zhang Z, Slebodnick C, Alatas A, Baker SP, Urban JJ, Tian Z. Supercompliant and Soft (CH_{3}NH_{3})_{3}Bi_{2}I_{9} Crystal with Ultralow Thermal Conductivity. PHYSICAL REVIEW LETTERS 2019; 123:155901. [PMID: 31702321 DOI: 10.1103/physrevlett.123.155901] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 06/28/2019] [Indexed: 06/10/2023]
Abstract
In this Letter, we show the phonon dispersion of (CH_{3}NH_{3})_{3}Bi_{2}I_{9} single crystals at 300 K measured by inelastic x-ray scattering. The frequencies of acoustic phonons are among the lowest of crystals. Nanoindentation measurements verified that these crystals are very compliant and considerably soft. The frequency overlap between acoustic and optical phonons results in strong acoustic-optical scattering. All these features lead to an ultralow thermal conductivity. The fundamental knowledge obtained from this study will accelerate the design of novel hybrid materials for energy applications.
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Affiliation(s)
- Hao Ma
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Chen Li
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Yunwei Ma
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - Heng Wang
- Molecular Foundry, Lawrence Berkeley National Laboratories, Berkeley, California 94720, USA
- Department of Mechanical, Materials, and Aerospace Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - Zachary W Rouse
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Zhuolei Zhang
- Molecular Foundry, Lawrence Berkeley National Laboratories, Berkeley, California 94720, USA
| | - Carla Slebodnick
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 64039, USA
| | - Shefford P Baker
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Jeffrey J Urban
- Molecular Foundry, Lawrence Berkeley National Laboratories, Berkeley, California 94720, USA
| | - Zhiting Tian
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA
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22
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De Francesco A, Scaccia L, Maccarini M, Formisano F, Guarini E, Bafile U, Cunsolo A. Interpreting the Terahertz Spectrum of Complex Materials: The Unique Contribution of the Bayesian Analysis. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2914. [PMID: 31505798 PMCID: PMC6766264 DOI: 10.3390/ma12182914] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/19/2019] [Accepted: 08/29/2019] [Indexed: 11/16/2022]
Abstract
In the last few decades, experimental studies of the terahertz spectrum of density fluctuations have considerably improved our knowledge of the mesoscopic dynamics of disordered materials, which also have imposed new demands on the data modelling and interpretation. Indeed, lineshape analyses are no longer limited to the phenomenological observation of inelastic features, as in the pioneering stage of Neutron or X-ray spectroscopy, rather aiming at the extraction from their shape of physically relevant quantities, as sound velocity and damping, relaxation times, or other transport coefficients. In this effort, researchers need to face both inherent and practical obstacles, respectively stemming from the highly damped nature of terahertz modes and the limited energy resolution, accessible kinematic region and statistical accuracy of the typical experimental outcome. To properly address these challenges, a global reconsideration of the lineshape modelling and the enforcement of evidence-based probabilistic inference is becoming crucial. Particularly compelling is the possibility of implementing Bayesian inference methods, which we illustrated here through an in-depth discussion of some results recently obtained in the analysis of Neutron and X-ray scattering results.
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Affiliation(s)
- Alessio De Francesco
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Operative Group in Grenoble (OGG), c/o Institut Laue Langevin, 38042 Grenoble, France
| | - Luisa Scaccia
- Dipartimento di Economia e Diritto, Università di Macerata, Via Crescimbeni 20, 62100 Macerata, Italy
| | - Marco Maccarini
- Laboratoire TIMC/IMAG UMR CNRS 5525 Grenoble, Université Grenoble-Alpes, 38000 Grenoble, France
| | - Ferdinando Formisano
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Operative Group in Grenoble (OGG), c/o Institut Laue Langevin, 38042 Grenoble, France
| | - Eleonora Guarini
- Dipartimento di Fisica e Astronomia, Università di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino, Italy
| | - Ubaldo Bafile
- Consiglio Nazionale delle Ricerche, Istituto di Fisica Applicata "Nello Carrara", via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy
| | - Alessandro Cunsolo
- Brookhaven National Laboratory-National Synchrotron Light Source-NSLS II, P.O. Box 5000, Upton, NY 11973, USA.
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23
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Manley ME, Hellman O, Shulumba N, May AF, Stonaha PJ, Lynn JW, Garlea VO, Alatas A, Hermann RP, Budai JD, Wang H, Sales BC, Minnich AJ. Intrinsic anharmonic localization in thermoelectric PbSe. Nat Commun 2019; 10:1928. [PMID: 31028271 PMCID: PMC6486597 DOI: 10.1038/s41467-019-09921-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 04/05/2019] [Indexed: 11/22/2022] Open
Abstract
Lead chalcogenides have exceptional thermoelectric properties and intriguing anharmonic lattice dynamics underlying their low thermal conductivities. An ideal material for thermoelectric efficiency is the phonon glass-electron crystal, which drives research on strategies to scatter or localize phonons while minimally disrupting electronic-transport. Anharmonicity can potentially do both, even in perfect crystals, and simulations suggest that PbSe is anharmonic enough to support intrinsic localized modes that halt transport. Here, we experimentally observe high-temperature localization in PbSe using neutron scattering but find that localization is not limited to isolated modes - zero group velocity develops for a significant section of the transverse optic phonon on heating above a transition in the anharmonic dynamics. Arrest of the optic phonon propagation coincides with unusual sharpening of the longitudinal acoustic mode due to a loss of phase space for scattering. Our study shows how nonlinear physics beyond conventional anharmonic perturbations can fundamentally alter vibrational transport properties.
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Affiliation(s)
- M E Manley
- Material Science and Technology Division, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA.
| | - O Hellman
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125, USA
| | - N Shulumba
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125, USA
| | - A F May
- Material Science and Technology Division, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - P J Stonaha
- Material Science and Technology Division, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - J W Lynn
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - V O Garlea
- Neutron Scattering Division, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - A Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 64039, USA
| | - R P Hermann
- Material Science and Technology Division, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - J D Budai
- Material Science and Technology Division, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - H Wang
- Material Science and Technology Division, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - B C Sales
- Material Science and Technology Division, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - A J Minnich
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125, USA.
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24
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Shi C, Beecher AN, Li Y, Owen JS, Leu BM, Said AH, Hu MY, Billinge SJL. Size-Dependent Lattice Dynamics of Atomically Precise Cadmium Selenide Quantum Dots. PHYSICAL REVIEW LETTERS 2019; 122:026101. [PMID: 30720324 DOI: 10.1103/physrevlett.122.026101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Indexed: 06/09/2023]
Abstract
Material properties depend sensitively on the atomic arrangements and atomic bonding, but these are notoriously difficult to measure in nanosized atomic clusters due to the small size of the objects and the challenge of obtaining bulk samples of identical clusters. Here, we have combined the recent ability to make gram quantities of identical semiconductor quantum-dot nanoparticles with the ability to measure lattice dynamics on small sample quantities of hydrogenated materials using high energy resolution inelastic x-ray scattering, to measure the size dependence of the phonon density of states in CdSe quantum dots. The fact that we have atomically precise structural models for these nanoparticles allows the calculation of the phonon density of states using density functional theory, providing both experimental and theoretical confirmations of the important role that the inertia of the surface capping species plays on determining the lattice dynamics.
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Affiliation(s)
- Chenyang Shi
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA
| | | | - Yan Li
- American Physical Society, 1 Research Road, Ridge, New York 11961, USA
| | - Jonathan S Owen
- Department of Chemistry, Columbia University, New York, New York 10027, USA
| | - Bogdan M Leu
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics, Miami University, Oxford, Ohio 45056, USA
| | - Ayman H Said
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Michael Y Hu
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Simon J L Billinge
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
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25
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Ma H, Ma Y, Wang H, Slebodnick C, Alatas A, Urban JJ, Tian Z. Experimental Phonon Dispersion and Lifetimes of Tetragonal CH 3NH 3PbI 3 Perovskite Crystals. J Phys Chem Lett 2019; 10:1-6. [PMID: 30554507 DOI: 10.1021/acs.jpclett.8b03419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hybrid organic-inorganic perovskites were reported to have ultralow thermal conductivity in recent studies. In this Letter, we report the first experimental phonon dispersion and lifetimes of tetragonal CH3NH3PbI3 single crystals at both 200 and 300 K by high-energy resolution inelastic X-ray scattering, which enables a thorough understanding of the underlying mechanisms for the ultralow thermal conductivity. Notably, we observed unusual and significant phonon dips along the [100] and [110] directions at both temperatures. The ultralow thermal conductivity can be attributed to small group velocities due to ultrasoft acoustic modes and short phonon lifetimes originating from the strong acoustic-optical coupling. We further provided the structural origins for these peculiar phonon features. Moreover, our results and interpretation are consistent with the reported temperature-dependent trend for thermal conductivity of CH3NH3PbI3. Our work offers critical guidelines for accelerating the design and discovery of novel hybrid materials for energy applications including photovoltaics and thermoelectrics.
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Affiliation(s)
- Hao Ma
- Sibley School of Mechanical and Aerospace Engineering , Cornell University , Ithaca , New York 14853 , United States
| | - Yunwei Ma
- Department of Mechanical Engineering , Virginia Tech , Blacksburg , Virginia 24061 , United States
| | - Heng Wang
- Molecular Foundry , Lawrence Berkeley National Laboratories , Berkeley , California 94720 , United States
- Department of Mechanical, Materials, and Aerospace Engineering , Illinois Institute of Technology , Chicago , Illinois 60616 , United States
| | - Carla Slebodnick
- Department of Chemistry , Virginia Tech , Blacksburg , Virginia 24061 , United States
| | - Ahmet Alatas
- Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 64039 , United States
| | - Jeffrey J Urban
- Molecular Foundry , Lawrence Berkeley National Laboratories , Berkeley , California 94720 , United States
| | - Zhiting Tian
- Sibley School of Mechanical and Aerospace Engineering , Cornell University , Ithaca , New York 14853 , United States
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26
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Brubaker ZE, Ran S, Said AH, Manley ME, Söderlind P, Rosas D, Idell Y, Zieve RJ, Butch NP, Jeffries JR. Phonon dispersion of Mo-stabilized γ-U measured using inelastic x-ray scattering. PHYSICAL REVIEW. B 2019; 100:10.1103/physrevb.100.094311. [PMID: 33553858 PMCID: PMC7860637 DOI: 10.1103/physrevb.100.094311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We have measured the room-temperature phonon spectrum of Mo-stabilized γ-U. The dispersion curves show unusual softening near the H point, q = [1/2, 1/2, 1/2], which may derive from the metastability of the γ-U phase or from strong electron-phonon coupling. Near the zone center, the dispersion curves agree well with theory, though significant differences are observed away from the zone center. The experimental phonon density of states is shifted to higher energy compared to theory and high-temperature neutron scattering. The elastic constants of γ-UMo are similar to those of body-centered cubic elemental metals.
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Affiliation(s)
- Z E Brubaker
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - S Ran
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
- Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A H Said
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - M E Manley
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - P Söderlind
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D Rosas
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Y Idell
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R J Zieve
- Department of Physics, University of California, Davis, California 95616, USA
| | - N P Butch
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
- Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - J R Jeffries
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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27
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De Francesco A, Scaccia L, Maccarini M, Formisano F, Zhang Y, Gang O, Nykypanchuk D, Said AH, Leu BM, Alatas A, Cai YQ, Cunsolo A. Damping Off Terahertz Sound Modes of a Liquid upon Immersion of Nanoparticles. ACS NANO 2018; 12:8867-8874. [PMID: 30052427 DOI: 10.1021/acsnano.8b03101] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The control of phonon propagation in nanoparticle arrays is one of the frontiers of nanotechnology, potentially enabling the discovery of materials with unknown functionalities for potential innovative applications. The exploration of the terahertz window appears quite promising as phonons in this range are the leading carriers of heat transport in insulators and their control is the key to implement devices for heat flow management. Unfortunately, this scientific field is still in its infancy, and even a basic topic such as the influence of floating nanoparticles on the terahertz phonon propagation of a colloidal suspension still eludes a firm answer. Shedding some light on this topic is the main motivation of the present work, which focuses an inelastic X-ray scattering (IXS) measurements on a dilute suspension of Au nanospheres in water. Measured spectra showed a nontrivial shape displaying multiple inelastic features that, based on a Bayesian inference analysis, we assign to phonon modes propagating throughout the nanoparticle interior. Surprisingly, the spectra bear no evidence of propagating modes, which are known to dominate the spectrum of pure water, owing to the scattering that these modes suffer from the sparse nanoparticles in suspension. In perspective, this finding may inspire simple routes to manipulate high-frequency acoustic propagation in hybrid-liquid and solid-materials.
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Affiliation(s)
- Alessio De Francesco
- Consiglio Nazionale delle Ricerche , Istituto Officina dei Materiali c/o OGG Grenoble 38043 , France
| | - Luisa Scaccia
- Dipartimento di Economia e Diritto , Universita' di Macerata , Via Crescimbeni 20 , 62100 Macerata , Italy
| | - Marco Maccarini
- Laboratoire TIMC/IMAG UMR CNRS 5525 , Université Grenoble-Alpes , Grenoble 38042 , France
| | - Ferdinando Formisano
- Consiglio Nazionale delle Ricerche , Istituto Officina dei Materiali c/o OGG Grenoble 38043 , France
| | | | - Oleg Gang
- Department of Chemical Engineering and Department of Applied Physics and Applied Mathematics , Columbia University , New York , New York 10027 , United States
| | | | - Ayman H Said
- Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Bogdan M Leu
- Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 60439 , United States
- Department of Physics , Miami University , Oxford , Ohio 45056 , United States
| | - Ahmet Alatas
- Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 60439 , United States
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28
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Miao H, Zhang TT, Wang L, Meyers D, Said AH, Wang YL, Shi YG, Weng HM, Fang Z, Dean MPM. Observation of Double Weyl Phonons in Parity-Breaking FeSi. PHYSICAL REVIEW LETTERS 2018; 121:035302. [PMID: 30085785 DOI: 10.1103/physrevlett.121.035302] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Indexed: 06/08/2023]
Abstract
Condensed matter systems have now become a fertile ground to discover emerging topological quasiparticles with symmetry protected modes. While many studies have focused on fermionic excitations, the same conceptual framework can also be applied to bosons yielding new types of topological states. Motivated by Zhang et al.'s recent theoretical prediction of double Weyl phonons in transition metal monosilicides [Phys. Rev. Lett. 120, 016401 (2018)PRLTAO0031-900710.1103/PhysRevLett.120.016401], we directly measure the phonon dispersion in parity-breaking FeSi using inelastic x-ray scattering. By comparing the experimental data with theoretical calculations, we make the first observation of double Weyl points in FeSi, which will be an ideal material to explore emerging bosonic excitations and its topologically nontrivial properties.
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Affiliation(s)
- H Miao
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - T T Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - L Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - D Meyers
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A H Said
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Y L Wang
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y G Shi
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - H M Weng
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100190, China
| | - Z Fang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100190, China
| | - M P M Dean
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
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29
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Kolodziej T, Shvyd'ko Y, Shu D, Kearney S, Stoupin S, Liu W, Gog T, Walko DA, Wang J, Said A, Roberts T, Goetze K, Baldini M, Yang W, Fister T, Blank V, Terentyev S, Kim KJ. High Bragg reflectivity of diamond crystals exposed to multi-kW mm -2 X-ray beams. JOURNAL OF SYNCHROTRON RADIATION 2018; 25:1022-1029. [PMID: 29979163 DOI: 10.1107/s1600577518007695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
X-ray free-electron lasers in the oscillator configuration (XFELO) are future fully coherent hard X-rays sources with ultrahigh spectral purity. X-ray beams circulate in an XFELO optical cavity comprising diamond single crystals. They function as high-reflectance (close to 100%), narrowband (∼10 meV) Bragg backscattering mirrors. The average power density of the X-ray beams in the XFELO cavity is predicted to be as high as ∼10 kW mm-2. Therefore, XFELO feasibility relies on the ability of diamond crystals to withstand such a high radiation load and preserve their high reflectivity. Here the endurance of diamond crystals to irradiation with multi-kW mm-2 power density X-ray beams is studied. It is shown that the high Bragg reflectivity of the diamond crystals is preserved after the irradiation, provided it is performed at ∼1 × 10-8 Torr high-vacuum conditions. Irradiation under 4 × 10-6 Torr results in a ∼1 meV shift of the Bragg peak, which corresponds to a relative lattice distortion of 4 × 10-8, while the high Bragg reflectivity stays intact.
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Affiliation(s)
- Tomasz Kolodziej
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Yuri Shvyd'ko
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Deming Shu
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Steven Kearney
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Stanislav Stoupin
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, NY 14853, USA
| | - Wenjun Liu
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Thomas Gog
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Donald A Walko
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Jin Wang
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Ayman Said
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Tim Roberts
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Kurt Goetze
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Maria Baldini
- High Pressure Synergetic Consortium, Advanced Photon Source, Lemont, IL 60439, USA
| | - Wenge Yang
- High Pressure Synergetic Consortium, Advanced Photon Source, Lemont, IL 60439, USA
| | - Timothy Fister
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Vladimir Blank
- Technological Institute for Superhard and Novel Carbon Materials, 142190 Troitsk, Russian Federation
| | - Sergey Terentyev
- Technological Institute for Superhard and Novel Carbon Materials, 142190 Troitsk, Russian Federation
| | - Kwang Je Kim
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
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30
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Shrestha UR, Bhowmik D, Van Delinder KW, Mamontov E, O’Neill H, Zhang Q, Alatas A, Chu XQ. Collective Excitations in Protein as a Measure of Balance Between its Softness and Rigidity. J Phys Chem B 2017; 121:923-930. [DOI: 10.1021/acs.jpcb.6b10245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Utsab R. Shrestha
- Department
of Physics and Astronomy, Wayne State University, Detroit, MI 48201, United States
| | - Debsindhu Bhowmik
- Computational
Science and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Kurt W. Van Delinder
- Department
of Physics and Astronomy, Wayne State University, Detroit, MI 48201, United States
| | - Eugene Mamontov
- Chemical
and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Hugh O’Neill
- Biology
and Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Qiu Zhang
- Biology
and Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Ahmet Alatas
- Advanced
Photon Source, Argonne National laboratory, Argonne, IL 60439, United States
| | - Xiang-Qiang Chu
- Department
of Physics and Astronomy, Wayne State University, Detroit, MI 48201, United States
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31
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Suvorov A, Cunsolo A, Chubar O, Cai YQ. Ultrahigh energy resolution focusing monochromator for inelastic x-ray scattering spectrometer. OPTICS EXPRESS 2015; 23:31607-31618. [PMID: 26698784 DOI: 10.1364/oe.23.031607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A further development of a focusing monochromator concept for X-ray energy resolution of 0.1 meV and below is presented. Theoretical analysis of several optical layouts based on this concept was supported by numerical simulations performed in the "Synchrotron Radiation Workshop" software package using the physical-optics approach and careful modeling of partially-coherent synchrotron (undulator) radiation. Along with the energy resolution, the spectral shape of the energy resolution function was investigated. It was shown that under certain conditions the decay of the resolution function tails can be faster than that of the Gaussian function.
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32
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Tian Z, Li M, Ren Z, Ma H, Alatas A, Wilson SD, Li J. Inelastic x-ray scattering measurements of phonon dispersion and lifetimes in PbTe1-x Se x alloys. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2015; 27:375403. [PMID: 26328745 DOI: 10.1088/0953-8984/27/37/375403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
PbTe1-x Se x alloys are of special interest to thermoelectric applications. Inelastic x-ray scattering determination of phonon dispersion and lifetimes along the high symmetry directions for PbTe1-x Se x alloys are presented. By comparing with calculated results based on the virtual crystal model calculations combined with ab initio density functional theory, the validity of virtual crystal model is evaluated. The results indicate that the virtual crystal model is overall a good assumption for phonon frequencies and group velocities despite the softening of transverse acoustic phonon modes along [1 1 1] direction, while the treatment of lifetimes warrants caution. In addition, phonons remain a good description of vibrational modes in PbTe1-x Se x alloys.
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Affiliation(s)
- Zhiting Tian
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA
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Toellner TS, Collins J, Goetze K, Hu MY, Preissner C, Trakhtenberg E, Yan L. Ultra-stable sub-meV monochromator for hard X-rays. JOURNAL OF SYNCHROTRON RADIATION 2015; 22:1155-62. [PMID: 26289266 PMCID: PMC4542453 DOI: 10.1107/s1600577515012230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 06/25/2015] [Indexed: 05/24/2023]
Abstract
A high-resolution silicon monochromator suitable for 21.541 keV synchrotron radiation is presented that produces a bandwidth of 0.27 meV. The operating energy corresponds to a nuclear transition in (151)Eu. The first-of-its-kind, fully cryogenic design achieves an energy-alignment stability of 0.017 meV r.m.s. per day, or a 100-fold improvement over other meV-monochromators, and can tolerate higher X-ray power loads than room-temperature designs of comparable resolution. This offers the potential for significantly more accurate measurements of lattice excitation energies using nuclear resonant vibrational spectroscopy if combined with accurate energy calibration using, for example, high-speed Doppler shifting. The design of the monochromator along with its performance and impact on transmitted beam properties are presented.
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Affiliation(s)
- T. S. Toellner
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - J. Collins
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - K. Goetze
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - M. Y. Hu
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - C. Preissner
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - E. Trakhtenberg
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - L. Yan
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
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Lin JF, Wu J, Zhu J, Mao Z, Said AH, Leu BM, Cheng J, Uwatoko Y, Jin C, Zhou J. Abnormal elastic and vibrational behaviors of magnetite at high pressures. Sci Rep 2014; 4:6282. [PMID: 25186916 PMCID: PMC4153994 DOI: 10.1038/srep06282] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 08/14/2014] [Indexed: 11/09/2022] Open
Abstract
Magnetite exhibits unique electronic, magnetic, and structural properties in extreme conditions that are of great research interest. Previous studies have suggested a number of transitional models, although the nature of magnetite at high pressure remains elusive. We have studied a highly stoichiometric magnetite using inelastic X-ray scattering, X-ray diffraction and emission, and Raman spectroscopies in diamond anvil cells up to ~20 GPa, while complementary electrical conductivity measurements were conducted in a cubic anvil cell up to 8.5 GPa. We have observed an elastic softening in the diagonal elastic constants (C11 and C44) and a hardening in the off-diagonal constant (C12) at ~8 GPa where significant elastic anisotropies in longitudinal and transverse acoustic waves occur, especially along the [110] direction. An additional vibrational Raman band between the A1g and T2g modes was also detected at the transition pressure. These abnormal elastic and vibrational behaviors of magnetite are attributed to the occurrence of the octahedrally-coordinated Fe2+-Fe3+-Fe2+ ions charge-ordering along the [110] direction in the inverse spinel structure. We propose a new phase diagram of magnetite in which the temperature for the metal-insulator and distorted structural transitions decreases with increasing pressure while the charge-ordering transition occurs at ~8 GPa and room temperature.
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Affiliation(s)
- Jung-Fu Lin
- 1] Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, TX 78712, USA [2] Texas Materials Institute, The University of Texas at Austin, TX 78712, USA [3] Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai, China
| | - Junjie Wu
- 1] Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai, China [2] Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - Jie Zhu
- Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - Zhu Mao
- 1] Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, TX 78712, USA [2] Laboratory of Seismology and Physics of Earth's Interior, School of Earth and Planetary Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ayman H Said
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Bogdan M Leu
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Jinguang Cheng
- 1] Texas Materials Institute, The University of Texas at Austin, TX 78712, USA [2] Department of Mechanical Engineering, The University of Texas at Austin, TX 78712, USA [3] Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Yoshiya Uwatoko
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Changqing Jin
- Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - Jianshi Zhou
- 1] Texas Materials Institute, The University of Texas at Austin, TX 78712, USA [2] Department of Mechanical Engineering, The University of Texas at Austin, TX 78712, USA
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Wang Z, Chiang WS, Le P, Fratini E, Li M, Alatas A, Baglioni P, Chen SH. One role of hydration water in proteins: key to the "softening" of short time intraprotein collective vibrations of a specific length scale. SOFT MATTER 2014; 10:4298-4303. [PMID: 24789017 DOI: 10.1039/c4sm00257a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
High resolution inelastic X-ray scattering (IXS) experiments show that the "phonon energy softening" and "phonon population enhancement" observed in a hydrated native protein when increasing the temperature from 200 K to physiological temperature are not directly related to the protein structure. Such phenomena were also observed in a denatured sample without a defined tertiary structure and with a limited residual secondary structure. However, in a dry sample, such "softening" is strongly suppressed. These facts suggest that the above-mentioned protein "softening" phenomenon is water-induced. In addition, increasing the hydration level can also induce "phonon energy softening" at room temperature, but not at 200 K. This change may be due to a qualitative difference in the dynamics of hydration water at 200 K and at room temperature.
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Affiliation(s)
- Zhe Wang
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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Alsmadi AM, Alatas A, Zhao JY, Hu MY, Yan L, Alp EE. Microfocusing options for the inelastic X-ray scattering beamline at sector 3 of the Advanced Photon Source. JOURNAL OF SYNCHROTRON RADIATION 2014; 21:488-496. [PMID: 24763637 DOI: 10.1107/s1600577514000940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 01/14/2014] [Indexed: 06/03/2023]
Abstract
Synchrotron radiation from third-generation high-brilliance storage rings is an ideal source for X-ray microbeams. The aim of this paper is to describe a microfocusing scheme that combines both a toroidal mirror and Kirkpatrick-Baez (KB) mirrors for upgrading the existing optical system for inelastic X-ray scattering experiments at sector 3 of the Advanced Photon Source. SHADOW ray-tracing simulations without considering slope errors of both the toroidal mirror and KB mirrors show that this combination can provide a beam size of 4.5 µm (H) × 0.6 µm (V) (FWHM) at the end of the existing D-station (66 m from the source) with use of full beam transmission of up to 59%, and a beam size of 3.7 µm (H) × 0.46 µm (V) (FWHM) at the front-end of the proposed E-station (68 m from the source) with a transmission of up to 52%. A beam size of about 5 µm (H) × 1 µm (V) can be obtained, which is close to the ideal case, by using high-quality mirrors (with slope errors of less than 0.5 µrad r.m.s.). Considering the slope errors of the existing toroidal and KB mirrors (5 and 2.9 µrad r.m.s., respectively), the beam size grows to about 13.5 µm (H) × 6.3 µm (V) at the end of the D-station and to 12.0 µm (H) × 6.0 µm (V) at the front-end of the proposed E-station. The simulations presented here are compared with the experimental measurements that are significantly larger than the theoretical values even when slope error is included in the simulations. This is because of the experimental set-up that could not yet be optimized.
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Affiliation(s)
- A M Alsmadi
- Physics Department, The Hashemite University, Zarqa 13115, Jordan
| | - A Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - J Y Zhao
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - M Y Hu
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - L Yan
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - E E Alp
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
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Stoupin S, Shvyd'ko YV, Shu D, Blank VD, Terentyev SA, Polyakov SN, Kuznetsov MS, Lemesh I, Mundboth K, Collins SP, Sutter JP, Tolkiehn M. Hybrid diamond-silicon angular-dispersive x-ray monochromator with 0.25-meV energy bandwidth and high spectral efficiency. OPTICS EXPRESS 2013; 21:30932-30946. [PMID: 24514666 DOI: 10.1364/oe.21.030932] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report on the design, implementation, and performance of an x-ray monochromator with ultra-high energy resolution (ΔE/E ≃ 2.7 × 10(-8)) and high spectral efficiency using x rays with photon energies E ≃ 9.13 keV. The operating principle of the monochromator is based on the phenomenon of angular dispersion in Bragg back-diffraction. The optical scheme of the monochromator is a modification of a scheme reported earlier [Shvyd'ko et al., Phys. Rev. A 84, 053823 (2011)], where a collimator/wavelength selector Si crystal was replaced with a 100-μm-thick type IIa diamond crystal. This modification provides a very-small-energy bandwidth ΔE ≃ 0.25 meV, a 3-fold increase in the aperture of the accepted beam, a reduction in the cumulative angular dispersion rate of x rays emanating from the monochromator for better focusing on a sample, a sufficient angular acceptance matching the angular divergence of an undulator source (≈ 10 μrad), and an improved throughput due to low x-ray absorption in the thin diamond crystal. The measured spectral efficiency of the monochromator was ≈ 65% with an aperture of 0.3 × 1 mm(2). The performance parameters of the monochromator are suitable for inelastic x-ray spectroscopy with an absolute energy resolution ΔE < 1 meV.
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Cunsolo A, Kodituwakku CN, Bencivenga F, Said AH. Shear propagation in the terahertz dynamics of water-glycerol mixtures. J Chem Phys 2013; 139:184507. [DOI: 10.1063/1.4827108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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39
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Wang Z, Bertrand CE, Chiang WS, Fratini E, Baglioni P, Alatas A, Alp EE, Chen SH. Inelastic X-ray Scattering Studies of the Short-Time Collective Vibrational Motions in Hydrated Lysozyme Powders and Their Possible Relation to Enzymatic Function. J Phys Chem B 2013; 117:1186-95. [DOI: 10.1021/jp312842m] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhe Wang
- Department of Nuclear Science and
Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Christopher E. Bertrand
- Department of Nuclear Science and
Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Wei-Shan Chiang
- Department of Nuclear Science and
Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Emiliano Fratini
- Department of Chemistry and CSGI, University of Florence, Sesto Fiorentino, Florence,
I-50019, Italy
| | - Piero Baglioni
- Department of Chemistry and CSGI, University of Florence, Sesto Fiorentino, Florence,
I-50019, Italy
| | - Ahmet Alatas
- Advanced Photon
Source, Argonne National Lab, Argonne,
Illinois, 60439, United States
| | - E. Ercan Alp
- Advanced Photon
Source, Argonne National Lab, Argonne,
Illinois, 60439, United States
| | - Sow-Hsin Chen
- Department of Nuclear Science and
Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Price DL, Fernandez-Alonso F. An Introduction to Neutron Scattering. EXPERIMENTAL METHODS IN THE PHYSICAL SCIENCES 2013. [DOI: 10.1016/b978-0-12-398374-9.00001-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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41
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42
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Yan L, Zhao J, Toellner TS, Divan R, Xu S, Cai Z, Boesenberg JS, Friedrich JM, Cramer SP, Alp EE. Exploration of synchrotron Mössbauer microscopy with micrometer resolution: forward and a new backscattering modality on natural samples. JOURNAL OF SYNCHROTRON RADIATION 2012; 19:814-20. [PMID: 22898962 PMCID: PMC3423314 DOI: 10.1107/s0909049512032414] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Accepted: 07/16/2012] [Indexed: 05/24/2023]
Abstract
New aspects of synchrotron Mössbauer microscopy are presented. A 5 µm spatial resolution is achieved, and sub-micrometer resolution is envisioned. Two distinct and unique methods, synchrotron Mössbauer imaging and nuclear resonant incoherent X-ray imaging, are used to resolve spatial distribution of species that are chemically and magnetically distinct from one another. Proof-of-principle experiments were performed on enriched (57)Fe phantoms, and on samples with natural isotopic abundance, such as meteorites.
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Affiliation(s)
- Lifen Yan
- Department of Chemistry, University of California, Davis, CA 95616, USA
- X-ray Sciences Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Jiyong Zhao
- X-ray Sciences Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Thomas S. Toellner
- X-ray Sciences Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Ralu Divan
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Shenglan Xu
- Biosciences Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Zhonghou Cai
- X-ray Sciences Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Joseph S. Boesenberg
- Department of Earth and Planetary Sciences, American Museum of Natural History, New York, NY 10024, USA
- Department of Geological Sciences, Brown University, Providence, RI 02912, USA
| | - Jon M. Friedrich
- Department of Earth and Planetary Sciences, American Museum of Natural History, New York, NY 10024, USA
- Department of Chemistry, Fordham University, Bronx, NY 10458, USA
| | - Stephen P. Cramer
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Esen E. Alp
- X-ray Sciences Division, Argonne National Laboratory, Argonne, IL 60439, USA
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Abstract
Compressional wave velocity-density (V(P)--ρ) relations of candidate Fe alloys at relevant pressure-temperature conditions of the Earth's core are critically needed to evaluate the composition, seismic signatures, and geodynamics of the planet's remotest region. Specifically, comparison between seismic V(P)--ρ profiles of the core and candidate Fe alloys provides first-order information on the amount and type of potential light elements--including H, C, O, Si, and/or S-needed to compensate the density deficit of the core. To address this issue, here we have surveyed and analyzed the literature results in conjunction with newly measured V(P)--ρ results of hexagonal closest-packed (hcp) Fe and hcp-Fe(0.85)Si(0.15) alloy using in situ high-energy resolution inelastic X-ray scattering and X-ray diffraction. The nature of the Fe-Si alloy where Si is readily soluble in Fe represents an ideal solid-solution case to better understand the light-element alloying effects. Our results show that high temperature significantly decreases the V(P) of hcp-Fe at high pressures, and the Fe-Si alloy exhibits similar high-pressure V(P)--ρ behavior to hcp-Fe via a constant density offset. These V(P)--ρ data at a given temperature can be better described by an empirical power-law function with a concave behavior at higher densities than with a linear approximation. Our new datasets, together with literature results, allow us to build new V(P)--ρ models of Fe alloys in order to determine the chemical composition of the core. Our models show that the V(P)--ρ profile of Fe with 8 wt % Si at 6,000 K matches well with the Preliminary Reference Earth Model of the inner core.
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Huang XR, Macrander AT, Honnicke MG, Cai YQ, Fernandez P. Dispersive spread of virtual sources by asymmetric X-ray monochromators. J Appl Crystallogr 2012. [DOI: 10.1107/s0021889812003366] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The principles of the virtual source spread (spatial broadening) phenomenon induced by angular dispersion in asymmetric X-ray Bragg reflections are illustrated, from which the virtual source properties are analyzed for typical high-resolution multiple-crystal monochromators, including inline four-bounce dispersive monochromators, back-reflection-dispersion monochromators and nondispersive nested channel-cut monochromators. It is found that dispersive monochromators can produce spread virtual sources of a few millimetres in size, which may prevent efficient microfocusing of the beam as required by inelastic X-ray scattering spectroscopy and other applications. Possible schemes to mitigate this problem are discussed. The analyses may provide important guidelines for designing and optimizing modern high-precision synchrotron X-ray optics and beamline instrumentation for spectroscopy, imaging and nanofocusing applications.
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Stoupin S, Shvyd'ko Y, Shu D, Khachatryan R, Xiao X, DeCarlo F, Goetze K, Roberts T, Roehrig C, Deriy A. Hard x-ray monochromator with milli-electron volt bandwidth for high-resolution diffraction studies of diamond crystals. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:023105. [PMID: 22380077 DOI: 10.1063/1.3684876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report on design and performance of a high-resolution x-ray monochromator with a spectral bandwidth of ΔE(X) ≃ 1.5 meV, which operates at x-ray energies in the vicinity of the backscattering (Bragg) energy E(H) = 13.903 keV of the (008) reflection in diamond. The monochromator is utilized for high-energy-resolution diffraction characterization of diamond crystals as elements of advanced x-ray crystal optics for synchrotrons and x-ray free-electron lasers. The monochromator and the related controls are made portable such that they can be installed and operated at any appropriate synchrotron beamline equipped with a pre-monochromator.
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Affiliation(s)
- Stanislav Stoupin
- Advanced Photon Source, Argonne National Laboratory, Illinois 60439, USA
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46
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Weber F, Rosenkranz S, Castellan JP, Osborn R, Hott R, Heid R, Bohnen KP, Egami T, Said AH, Reznik D. Extended phonon collapse and the origin of the charge-density wave in 2H-NbSe2. PHYSICAL REVIEW LETTERS 2011; 107:107403. [PMID: 21981528 DOI: 10.1103/physrevlett.107.107403] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Indexed: 05/31/2023]
Abstract
We report inelastic x-ray scattering measurements of the temperature dependence of phonon dispersion in the prototypical charge-density-wave (CDW) compound 2H-NbSe2. Surprisingly, acoustic phonons soften to zero frequency and become overdamped over an extended region around the CDW wave vector. This extended phonon collapse is dramatically different from the sharp cusp in the phonon dispersion expected from Fermi surface nesting. Instead, our experiments, combined with ab initio calculations, show that it is the wave vector dependence of the electron-phonon coupling that drives the CDW formation in 2H-NbSe2 and determines its periodicity. This mechanism explains the so far enigmatic behavior of CDW in 2H-NbSe2 and may provide a new approach to other strongly correlated systems where electron-phonon coupling is important.
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Affiliation(s)
- F Weber
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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