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Wehinger B, Mirone A, Krisch M, Bosak A. Full Elasticity Tensor from Thermal Diffuse Scattering. PHYSICAL REVIEW LETTERS 2017; 118:035502. [PMID: 28157361 DOI: 10.1103/physrevlett.118.035502] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Indexed: 06/06/2023]
Abstract
We present a method for the precise determination of the full elasticity tensor from a single crystal diffraction experiment using monochromatic x rays. For the two benchmark systems calcite and magnesium oxide, we show that the measurement of thermal diffuse scattering in the proximity of Bragg reflections provides accurate values of the complete set of elastic constants. This approach allows for a reliable and model-free determination of the elastic properties and can be performed together with crystal structure investigation in the same experiment.
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Affiliation(s)
- Björn Wehinger
- Department of Quantum Matter Physics, University of Geneva, 24, Quai Ernest Ansermet, CH-1211 Genève, Switzerland
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
| | - Alessandro Mirone
- European Synchrotron Radiation Facility, 71, Avenue des Martyrs, F-38000 Grenoble, France
| | - Michael Krisch
- European Synchrotron Radiation Facility, 71, Avenue des Martyrs, F-38000 Grenoble, France
| | - Alexeï Bosak
- European Synchrotron Radiation Facility, 71, Avenue des Martyrs, F-38000 Grenoble, France
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2
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Tóth S, Wehinger B, Rolfs K, Birol T, Stuhr U, Takatsu H, Kimura K, Kimura T, Rønnow HM, Rüegg C. Electromagnon dispersion probed by inelastic X-ray scattering in LiCrO 2. Nat Commun 2016; 7:13547. [PMID: 27882928 PMCID: PMC5123047 DOI: 10.1038/ncomms13547] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 10/12/2016] [Indexed: 11/30/2022] Open
Abstract
Inelastic X-ray scattering with meV energy resolution (IXS) is an ideal tool to measure collective excitations in solids and liquids. In non-resonant scattering condition, the cross-section is strongly dominated by lattice vibrations (phonons). However, it is possible to probe additional degrees of freedom such as magnetic fluctuations that are strongly coupled to the phonons. The IXS spectrum of the coupled system contains not only the phonon dispersion but also the so far undetected magnetic correlation function. Here we report the observation of strong magnon–phonon coupling in LiCrO2 that enables the measurement of magnetic correlations throughout the Brillouin zone via IXS. We find electromagnon excitations and electric dipole active two-magnon excitations in the magnetically ordered phase and heavily damped electromagnons in the paramagnetic phase of LiCrO2. We predict that several (frustrated) magnets with dominant direct exchange and non-collinear magnetism show surprisingly large IXS cross-section for magnons and multi-magnon processes. Whilst terahertz optical spectroscopy allows for the study of coupled spin and lattice excitations, it is limited in momentum space. Here, the authors use inelastic x-ray scattering to demonstrate strong magnon-phonon coupling and electromagnon excitations across the Brillouin zone of LiCrO2.
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Affiliation(s)
- Sándor Tóth
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, 5232 Villigen, Switzerland.,Laboratory for Quantum Magnetism, Institute of Physics, EPFL, 1015 Lausanne, Switzerland
| | - Björn Wehinger
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, 5232 Villigen, Switzerland.,Department of Quantum Matter Physics, University of Geneva, 1211 Genève, Switzerland
| | - Katharina Rolfs
- Laboratory for Scientific Developments and Novel Materials, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Turan Birol
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, USA.,Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Uwe Stuhr
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Hiroshi Takatsu
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.,Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Kenta Kimura
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Osaka 560-8531, Japan
| | - Tsuyoshi Kimura
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Osaka 560-8531, Japan
| | - Henrik M Rønnow
- Laboratory for Quantum Magnetism, Institute of Physics, EPFL, 1015 Lausanne, Switzerland
| | - Christian Rüegg
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, 5232 Villigen, Switzerland.,Department of Quantum Matter Physics, University of Geneva, 1211 Genève, Switzerland
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3
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Fukui H, Yoneda A, Nakatsuka A, Tsujino N, Kamada S, Ohtani E, Shatskiy A, Hirao N, Tsutsui S, Uchiyama H, Baron AQR. Effect of cation substitution on bridgmanite elasticity: A key to interpret seismic anomalies in the lower mantle. Sci Rep 2016; 6:33337. [PMID: 27642083 PMCID: PMC5027542 DOI: 10.1038/srep33337] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 08/24/2016] [Indexed: 12/04/2022] Open
Abstract
Seismological observations show that, in some regions of the lower mantle, an increase in bulk sound velocity, interestingly, occurs in the same volume where there is a decrease in shear velocity. We show that this anti-correlated behavior occurs on cation substitution in bridgmanite by making single crystal elasticity measurements of MgSiO3 and (Mg,Fe,Al)(Si,Al)O3 using inelastic x-ray scattering in the ambient conditions. Cation substitution of ferrous iron and aluminum may explain large low shear velocity provinces in the lower mantle.
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Affiliation(s)
- Hiroshi Fukui
- Center for Novel Material Science under Multi-Extreme Conditions, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Hyogo 678-1297, Japan.,Materials Dynamics Laboratory, RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo, Hyogo 689-5148, Japan
| | - Akira Yoneda
- Institute for Planetary Materials, Okayama University, 827 Yamada, Misasa, Tottori 682-0193, Japan
| | - Akihiko Nakatsuka
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Noriyoshi Tsujino
- Institute for Planetary Materials, Okayama University, 827 Yamada, Misasa, Tottori 682-0193, Japan
| | - Seiji Kamada
- Graduate School of Science, Tohoku University, 6-3 Aramaki, Aoba, Sendai, Miyagi 980-8578, Japan.,Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki, Aoba, Sendai, Miyagi 980-8578, Japan
| | - Eiji Ohtani
- Graduate School of Science, Tohoku University, 6-3 Aramaki, Aoba, Sendai, Miyagi 980-8578, Japan.,V. S. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Anton Shatskiy
- V. S. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Naohisa Hirao
- Research and Utilization Division, Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 689-5198, Japan
| | - Satoshi Tsutsui
- Research and Utilization Division, Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 689-5198, Japan
| | - Hiroshi Uchiyama
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo, Hyogo 689-5148, Japan.,Research and Utilization Division, Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 689-5198, Japan
| | - Alfred Q R Baron
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, RIKEN, 1-1-1 Kouto, Sayo, Hyogo 689-5148, Japan.,Research and Utilization Division, Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 689-5198, Japan
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4
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Phonon triggered rhombohedral lattice distortion in vanadium at high pressure. Sci Rep 2016; 6:31887. [PMID: 27539662 PMCID: PMC4990969 DOI: 10.1038/srep31887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 07/26/2016] [Indexed: 11/22/2022] Open
Abstract
In spite of the simple body-centered-cubic crystal structure, the elements of group V, vanadium, niobium and tantalum, show strong interactions between the electronic properties and lattice dynamics. Further, these interactions can be tuned by external parameters, such as pressure and temperature. We used inelastic x-ray scattering to probe the phonon dispersion of single-crystalline vanadium as a function of pressure to 45 GPa. Our measurements show an anomalous high-pressure behavior of the transverse acoustic mode along the (100) direction and a softening of the elastic modulus C44 that triggers a rhombohedral lattice distortion occurring between 34 and 39 GPa. Our results provide the missing experimental confirmation of the theoretically predicted shear instability arising from the progressive intra-band nesting of the Fermi surface with increasing pressure, a scenario common to all transition metals of group V.
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Antonangeli D, Siebert J, Aracne CM, Farber DL, Bosak A, Hoesch M, Krisch M, Ryerson FJ, Fiquet G, Badro J. Spin Crossover in Ferropericlase at High Pressure: A Seismologically Transparent Transition? Science 2011; 331:64-7. [DOI: 10.1126/science.1198429] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Daniele Antonangeli
- Institut de Minéralogie et de Physique des Milieux Condensés, UMR CNRS 7590, Institut de Physique du Globe de Paris, Université Pierre et Marie Curie, Université Paris Diderot, 75005 Paris, France
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Julien Siebert
- Institut de Minéralogie et de Physique des Milieux Condensés, UMR CNRS 7590, Institut de Physique du Globe de Paris, Université Pierre et Marie Curie, Université Paris Diderot, 75005 Paris, France
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | | | - Daniel L. Farber
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
- Department of Earth and Planetary Sciences, University of California, Santa Cruz, Santa Cruz, CA, 95064, USA
| | - A. Bosak
- European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
| | - M. Hoesch
- European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
| | - M. Krisch
- European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
| | | | - Guillaume Fiquet
- Institut de Minéralogie et de Physique des Milieux Condensés, UMR CNRS 7590, Institut de Physique du Globe de Paris, Université Pierre et Marie Curie, Université Paris Diderot, 75005 Paris, France
| | - James Badro
- Institut de Minéralogie et de Physique des Milieux Condensés, UMR CNRS 7590, Institut de Physique du Globe de Paris, Université Pierre et Marie Curie, Université Paris Diderot, 75005 Paris, France
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
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6
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Diddens I, Murphy B, Krisch M, Müller M. Anisotropic Elastic Properties of Cellulose Measured Using Inelastic X-ray Scattering. Macromolecules 2008. [DOI: 10.1021/ma801796u] [Citation(s) in RCA: 183] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Imke Diddens
- Institut für Experimentelle and Angewandte Physik, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany, and European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
| | - Bridget Murphy
- Institut für Experimentelle and Angewandte Physik, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany, and European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
| | - Michael Krisch
- Institut für Experimentelle and Angewandte Physik, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany, and European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
| | - Martin Müller
- Institut für Experimentelle and Angewandte Physik, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany, and European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
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Mao WL, Struzhkin VV, Baron AQR, Tsutsui S, Tommaseo CE, Wenk HR, Hu MY, Chow P, Sturhahn W, Shu J, Hemley RJ, Heinz DL, Mao HK. Experimental determination of the elasticity of iron at high pressure. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jb005229] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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8
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Antonangeli D, Krisch M, Farber DL, Ruddle DG, Fiquet G. Elasticity of hexagonal-closed-packed cobalt at high pressure and temperature: a quasiharmonic case. PHYSICAL REVIEW LETTERS 2008; 100:085501. [PMID: 18352634 DOI: 10.1103/physrevlett.100.085501] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2007] [Indexed: 05/26/2023]
Abstract
We performed high-resolution inelastic x-ray scattering measurements on a single crystal of hcp cobalt at simultaneous high pressure and high temperature, obtaining 4 of the 5 independent elements of the elastic tensor. Our experiments indicate that the elasticity of hcp-Co is well described within the quasiharmonic approximation and that anharmonic high-temperature effects on the elastic moduli, sound velocities, and elastic anisotropy are minimal at constant density. These results support the validity of Birch's law and represent an important benchmark for ab initio thermal lattice dynamics and molecular-dynamics simulations.
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Merkel S. X-ray diffraction evaluation of stress in high pressure deformation experiments. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2006; 18:S949-S962. [PMID: 22611104 DOI: 10.1088/0953-8984/18/25/s03] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper explores the applicability of x-ray diffraction measurements of stress to high pressure deformation experiments. We model measurements of elastic lattice strains in various geometries for both axial and rotational deformation apparatus. We then show that, for most cases, stresses can be inverted from the diffraction data. A comparison between the results of our models and actual experimental data also indicates that plastic deformation can have an influence that is not addressed properly in the elastic models of lattice strains and should therefore be treated with caution.
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Farber DL, Krisch M, Antonangeli D, Beraud A, Badro J, Occelli F, Orlikowski D. Lattice dynamics of molybdenum at high pressure. PHYSICAL REVIEW LETTERS 2006; 96:115502. [PMID: 16605838 DOI: 10.1103/physrevlett.96.115502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2005] [Indexed: 05/08/2023]
Abstract
We have determined the lattice dynamics of molybdenum at high pressure to 37 GPa using high-resolution inelastic x-ray scattering. Over the investigated pressure range, we find a significant decrease in the H-point phonon anomaly. We also present calculations based on density functional theory that accurately predict this pressure dependence. Based on these results, we infer that the likely explanation for the H-point anomaly in molybdenum is strong electron-phonon coupling, which decreases upon compression due to the shift of the Fermi level with respect to the relevant electronic bands.
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Affiliation(s)
- Daniel L Farber
- Earth Science Division, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
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11
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Ghose S, Krisch M, Oganov AR, Beraud A, Bosak A, Gulve R, Seelaboyina R, Yang H, Saxena SK. Lattice dynamics of MgO at high pressure: theory and experiment. PHYSICAL REVIEW LETTERS 2006; 96:035507. [PMID: 16486728 DOI: 10.1103/physrevlett.96.035507] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2005] [Indexed: 05/06/2023]
Abstract
The longitudinal acoustic and optical phonon branches along the Gamma-X direction of MgO at 35 GPa have been determined by inelastic x-ray scattering using synchrotron radiation and a diamond-anvil cell. The experimentally observed phonon branches are in remarkable agreement with ab initio lattice dynamics results. The derived thermodynamic properties, such as the specific heat CV and the entropy S are in very good accord with values obtained from a thermodynamically assessed data set involving measured data on molar volume, heat capacity at constant pressure, bulk modulus and thermal expansion.
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Affiliation(s)
- Subrata Ghose
- Mineral Physics Group, Box 351310, University of Washington, Seattle, Washington 98195, USA
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