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Taranova A, Akbar K, Yusupov K, You S, Polewczyk V, Mauri S, Balliana E, Rosen J, Moras P, Gradone A, Morandi V, Moretti E, Vomiero A. Author Correction: Unraveling the optoelectronic properties of CoSb x intrinsic selective solar absorber towards high-temperature surfaces. Nat Commun 2024; 15:3548. [PMID: 38670951 PMCID: PMC11053046 DOI: 10.1038/s41467-024-47332-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024] Open
Affiliation(s)
- Anastasiia Taranova
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice, Italy
| | - Kamran Akbar
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice, Italy.
| | - Khabib Yusupov
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83, Linköping, Sweden
| | - Shujie You
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden
| | - Vincent Polewczyk
- Istituto Officina dei Materiali (IOM) - CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste, I-34149, Italy
| | - Silvia Mauri
- Istituto Officina dei Materiali (IOM) - CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste, I-34149, Italy
- Dipartimento di Fisica, University of Trieste, via A. Valerio 2, 34127, Trieste, Italy
| | - Eleonora Balliana
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Scientific Campus Via Torino 155/b, 30173, Venice, Italy
| | - Johanna Rosen
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83, Linköping, Sweden
| | - Paolo Moras
- Istituto di Struttura della Materia (ISM) - CNR, S.S. 14 Km 163.5, Trieste, I-34149, Italy
| | - Alessandro Gradone
- Istituto per la Microelettronica ed i Microsistemi (IMM) - CNR Sede di Bologna, via Gobetti 101, 40129, Bologna, Italy
| | - Vittorio Morandi
- Istituto per la Microelettronica ed i Microsistemi (IMM) - CNR Sede di Bologna, via Gobetti 101, 40129, Bologna, Italy
| | - Elisa Moretti
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice, Italy.
| | - Alberto Vomiero
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice, Italy.
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden.
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2
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De Vita A, Sant R, Polewczyk V, van der Laan G, Brookes NB, Kong T, Cava RJ, Rossi G, Vinai G, Panaccione G. Evidence of Temperature-Dependent Interplay between Spin and Orbital Moment in van der Waals Ferromagnet VI 3. Nano Lett 2024; 24:1487-1493. [PMID: 38285518 DOI: 10.1021/acs.nanolett.3c03525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
van der Waals materials provide a versatile toolbox for the emergence of new quantum phenomena and fabrication of functional heterostructures. Among them, the trihalide VI3 stands out for its unique magnetic and structural landscape. Here we investigate the spin and orbital magnetic degrees of freedom in the layered ferromagnet VI3 by means of temperature-dependent X-ray absorption spectroscopy and X-ray magnetic circular and linear dichroism. We detect localized electronic states and reduced magnetic dimensionality, due to electronic correlations. We furthermore provide experimental evidence of (a) an unquenched orbital magnetic moment (up to 0.66(7) μB/V atom) in the ferromagnetic state and (b) an instability of the orbital moment in the proximity of the spin reorientation transition. Our results support a coherent picture where electronic correlations give rise to a strong magnetic anisotropy and a large orbital moment and establish VI3 as a prime candidate for the study of orbital quantum effects.
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Affiliation(s)
- Alessandro De Vita
- Dipartimento di Fisica, Universitá degli Studi di Milano, Via Celoria 16, I-20133 Milano, Italy
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Roberto Sant
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220, 38043 Grenoble Cedex 9, France
| | - Vincent Polewczyk
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Gerrit van der Laan
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, U.K
| | - Nicholas B Brookes
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220, 38043 Grenoble Cedex 9, France
| | - Tai Kong
- Department of Chemistry, Princeton University, Princeton, New Jersey 08540, United States
| | - Robert J Cava
- Department of Chemistry, Princeton University, Princeton, New Jersey 08540, United States
| | - Giorgio Rossi
- Dipartimento di Fisica, Universitá degli Studi di Milano, Via Celoria 16, I-20133 Milano, Italy
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Giovanni Vinai
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Giancarlo Panaccione
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
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3
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Mazzola F, Brzezicki W, Mercaldo MT, Guarino A, Bigi C, Miwa JA, De Fazio D, Crepaldi A, Fujii J, Rossi G, Orgiani P, Chaluvadi SK, Chalil SP, Panaccione G, Jana A, Polewczyk V, Vobornik I, Kim C, Miletto-Granozio F, Fittipaldi R, Ortix C, Cuoco M, Vecchione A. Signatures of a surface spin-orbital chiral metal. Nature 2024; 626:752-758. [PMID: 38326617 PMCID: PMC10881390 DOI: 10.1038/s41586-024-07033-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 01/05/2024] [Indexed: 02/09/2024]
Abstract
The relation between crystal symmetries, electron correlations and electronic structure steers the formation of a large array of unconventional phases of matter, including magneto-electric loop currents and chiral magnetism1-6. The detection of such hidden orders is an important goal in condensed-matter physics. However, until now, non-standard forms of magnetism with chiral electronic ordering have been difficult to detect experimentally7. Here we develop a theory for symmetry-broken chiral ground states and propose a methodology based on circularly polarized, spin-selective, angular-resolved photoelectron spectroscopy to study them. We use the archetypal quantum material Sr2RuO4 and reveal spectroscopic signatures that, despite being subtle, can be reconciled with the formation of spin-orbital chiral currents at the surface of the material8-10. As we shed light on these chiral regimes, our findings pave the way for a deeper understanding of ordering phenomena and unconventional magnetism.
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Affiliation(s)
- Federico Mazzola
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Venice, Italy.
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Trieste, Italy.
| | - Wojciech Brzezicki
- Institute of Theoretical Physics, Jagiellonian University, Kraków, Poland
- International Centre for Interfacing Magnetism and Superconductivity with Topological Matter, Institute of Physics, Polish Academy of Sciences, Warsaw, Poland
| | | | - Anita Guarino
- Istituto SPIN, Consiglio Nazionale delle Ricerche, Fisciano, Italy
| | | | - Jill A Miwa
- Department of Physics and Astronomy, Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, Denmark
| | - Domenico De Fazio
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Venice, Italy
| | | | - Jun Fujii
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Trieste, Italy
| | - Giorgio Rossi
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Trieste, Italy
- Dipartimento di Fisica, Università degli Studi di Milano, Milan, Italy
| | - Pasquale Orgiani
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Trieste, Italy
| | | | | | - Giancarlo Panaccione
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Trieste, Italy
| | - Anupam Jana
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Trieste, Italy
| | - Vincent Polewczyk
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Trieste, Italy
| | - Ivana Vobornik
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Trieste, Italy
| | - Changyoung Kim
- Department of Physics and Astronomy, Seoul National University, Seoul, Korea
| | | | | | - Carmine Ortix
- Dipartimento di Fisica "E. R. Caianiello", Università di Salerno, Fisciano, Italy
| | - Mario Cuoco
- Istituto SPIN, Consiglio Nazionale delle Ricerche, Fisciano, Italy.
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4
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Taranova A, Akbar K, Yusupov K, You S, Polewczyk V, Mauri S, Balliana E, Rosen J, Moras P, Gradone A, Morandi V, Moretti E, Vomiero A. Unraveling the optoelectronic properties of CoSb x intrinsic selective solar absorber towards high-temperature surfaces. Nat Commun 2023; 14:7280. [PMID: 37949914 PMCID: PMC10638324 DOI: 10.1038/s41467-023-42839-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 10/24/2023] [Indexed: 11/12/2023] Open
Abstract
The combination of the ability to absorb most of the solar radiation and simultaneously suppress infrared re-radiation allows selective solar absorbers (SSAs) to maximize solar energy to heat conversion, which is critical to several advanced applications. The intrinsic spectral selective materials are rare in nature and only a few demonstrated complete solar absorption. Typically, intrinsic materials exhibit high performances when integrated into complex multilayered solar absorber systems due to their limited spectral selectivity and solar absorption. In this study, we propose CoSbx (2 < x < 3) as a new exceptionally efficient SSA. Here we demonstrate that the low bandgap nature of CoSbx endows broadband solar absorption (0.96) over the solar spectral range and simultaneous low emissivity (0.18) in the mid-infrared region, resulting in a remarkable intrinsic spectral solar selectivity of 5.3. Under 1 sun illumination, the heat concentrates on the surface of the CoSbx thin film, and an impressive temperature of 101.7 °C is reached, demonstrating the highest value among reported intrinsic SSAs. Furthermore, the CoSbx was tested for solar water evaporation achieving an evaporation rate of 1.4 kg m-2 h-1. This study could expand the use of narrow bandgap semiconductors as efficient intrinsic SSAs with high surface temperatures in solar applications.
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Affiliation(s)
- Anastasiia Taranova
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice, Italy
| | - Kamran Akbar
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice, Italy.
| | - Khabib Yusupov
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83, Linköping, Sweden
| | - Shujie You
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden
| | - Vincent Polewczyk
- Istituto Officina dei Materiali (IOM) - CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste, I-34149, Italy
| | - Silvia Mauri
- Istituto Officina dei Materiali (IOM) - CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste, I-34149, Italy
- Dipartimento di Fisica, University of Trieste, via A. Valerio 2, 34127, Trieste, Italy
| | - Eleonora Balliana
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Scientific Campus Via Torino 155/b, 30173, Venice, Italy
| | - Johanna Rosen
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 581 83, Linköping, Sweden
| | - Paolo Moras
- Istituto di Struttura della Materia (ISM) - CNR, S.S. 14 Km 163.5, Trieste, I-34149, Italy
| | - Alessandro Gradone
- Istituto per la Microelettronica ed i Microsistemi (IMM) - CNR Sede di Bologna, via Gobetti 101, 40129, Bologna, Italy
| | - Vittorio Morandi
- Istituto per la Microelettronica ed i Microsistemi (IMM) - CNR Sede di Bologna, via Gobetti 101, 40129, Bologna, Italy
| | - Elisa Moretti
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice, Italy.
| | - Alberto Vomiero
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice, Italy.
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden.
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5
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Mazzola F, Hassani H, Amoroso D, Chaluvadi SK, Fujii J, Polewczyk V, Rajak P, Koegler M, Ciancio R, Partoens B, Rossi G, Vobornik I, Ghosez P, Orgiani P. Correction to "Unveiling the Electronic Structure of Pseudotetragonal WO 3 Thin Films". J Phys Chem Lett 2023; 14:8138. [PMID: 37669439 PMCID: PMC10510429 DOI: 10.1021/acs.jpclett.3c02358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Indexed: 09/07/2023]
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6
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Mazzola F, Hassani H, Amoroso D, Chaluvadi SK, Fujii J, Polewczyk V, Rajak P, Koegler M, Ciancio R, Partoens B, Rossi G, Vobornik I, Ghosez P, Orgiani P. Unveiling the Electronic Structure of Pseudotetragonal WO 3 Thin Films. J Phys Chem Lett 2023; 14:7208-7214. [PMID: 37551605 PMCID: PMC10440808 DOI: 10.1021/acs.jpclett.3c01546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/26/2023] [Indexed: 08/09/2023]
Abstract
WO3 is a 5d compound that undergoes several structural transitions in its bulk form. Its versatility is well-documented, with a wide range of applications, such as flexopiezoelectricity, electrochromism, gating-induced phase transitions, and its ability to improve the performance of Li-based batteries. The synthesis of WO3 thin films holds promise in stabilizing electronic phases for practical applications. However, despite its potential, the electronic structure of this material remains experimentally unexplored. Furthermore, its thermal instability limits its use in certain technological devices. Here, we employ tensile strain to stabilize WO3 thin films, which we call the pseudotetragonal phase, and investigate its electronic structure using a combination of photoelectron spectroscopy and density functional theory calculations. This study reveals the Fermiology of the system, notably identifying significant energy splittings between different orbital manifolds arising from atomic distortions. These splittings, along with the system's thermal stability, offer a potential avenue for controlling inter- and intraband scattering for electronic applications.
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Affiliation(s)
- F. Mazzola
- Department
of Molecular Sciences and Nanosystems, Ca’
Foscari University of Venice, 30172 Venice, Italy
- Istituto
Officina dei Materiali (IOM)-CNR, Area Science Park, 34149 Trieste, Italy
| | - H. Hassani
- Theoretical
Materials Physics, Q-MAT, CESAM, Université
de Liège, B-4000 Liège, Belgium
- Department
of Physics, University of Antwerp, 2020 Antwerp, Belgium
| | - D. Amoroso
- Theoretical
Materials Physics, Q-MAT, CESAM, Université
de Liège, B-4000 Liège, Belgium
| | - S. K. Chaluvadi
- Istituto
Officina dei Materiali (IOM)-CNR, Area Science Park, 34149 Trieste, Italy
| | - J. Fujii
- Istituto
Officina dei Materiali (IOM)-CNR, Area Science Park, 34149 Trieste, Italy
| | - V. Polewczyk
- Istituto
Officina dei Materiali (IOM)-CNR, Area Science Park, 34149 Trieste, Italy
| | - P. Rajak
- Istituto
Officina dei Materiali (IOM)-CNR, Area Science Park, 34149 Trieste, Italy
| | - Max Koegler
- Istituto
Officina dei Materiali (IOM)-CNR, Area Science Park, 34149 Trieste, Italy
| | - R. Ciancio
- Area
Science Park, Padriciano
99, 34149 Trieste, Italy
| | - B. Partoens
- Department
of Physics, University of Antwerp, 2020 Antwerp, Belgium
| | - G. Rossi
- Istituto
Officina dei Materiali (IOM)-CNR, Area Science Park, 34149 Trieste, Italy
- University
of Milano, I-20133 Milano, Italy
| | - I. Vobornik
- Istituto
Officina dei Materiali (IOM)-CNR, Area Science Park, 34149 Trieste, Italy
| | - P. Ghosez
- Theoretical
Materials Physics, Q-MAT, CESAM, Université
de Liège, B-4000 Liège, Belgium
| | - P. Orgiani
- Istituto
Officina dei Materiali (IOM)-CNR, Area Science Park, 34149 Trieste, Italy
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7
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Sant R, De Vita A, Polewczyk V, Pierantozzi GM, Mazzola F, Vinai G, van der Laan G, Panaccione G, Brookes NB. Anisotropic hybridization probed by polarization dependent x-ray absorption spectroscopy in VI 3van der Waals Mott ferromagnet. J Phys Condens Matter 2023. [PMID: 37364587 DOI: 10.1088/1361-648x/ace1bf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Polarization dependent x-ray absorption spectroscopy was used to study the magnetic ground state and the orbital occupation in bulk-phase VI3 van der Waals crystals below and above the ferromagnetic and structural transitions. X-ray natural linear dichroism and X-ray magnetic circular dichroism spectra acquired at the V L2,3 edges are compared against multiplet cluster calculations within the frame of the ligand field theory to quantify the intra-atomic electronic interactions at play and evaluate the effects of symmetry reduction occurring in a trigonally distorted VI6 unit. We observed a non zero linear dichroism proving the presence of an anisotropic charge density distribution around the V3+ ion due to the unbalanced hybridization between the Vanadium and the ligand states. Such hybridization acts as an effective trigonal crystal field, slightly lifting the degeneracy of the t22g ground state. However, the energy splitting associated to the distortion underestimates the experimental band gap, suggesting that the insulating ground state is stabilized by Mott correlation effects rather than via a Jahn-Teller mechanism. Our results clarify the role of the distortion in VI3 and establish a benchmark for the study of the spectroscopic properties of other van der Waals halides, including emerging 2D materials with mono and few-layers thickness, whose fundamental properties might be altered by reduced dimensions and interface proximity.
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Affiliation(s)
- Roberto Sant
- Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy, Milano, 20133, ITALY
| | - Alessandro De Vita
- Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, Km 163.5, I-34149 Trieste, Italy, Trieste, Trieste, 34149, ITALY
| | - Vincent Polewczyk
- Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, Km 163.5, I-34149 Trieste, Italy, Trieste, Trieste, 34149, ITALY
| | - Gian Marco Pierantozzi
- Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, Km 163.5, I-34149 Trieste, Italy, Trieste, Trieste, 34149, ITALY
| | - Federico Mazzola
- Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, Km 163.5, I-34149 Trieste, Italy, Trieste, Trieste, 34149, ITALY
| | - Giovanni Vinai
- Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, CNR-Istituto Officina dei Materiali, Laboratorio TASC in Area Science Park, S.S. 14 Km 163.5 in AREA Science Park, Trieste, Trieste, 34149, ITALY
| | - Gerrit van der Laan
- Science Division, Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Giancarlo Panaccione
- Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, in Area Science Park, S.S.14, Km 163.5, I-34149 Trieste, Italy, Trieste, Trieste, 34149, ITALY
| | - N B Brookes
- European Synchrotron Radiation Facility, ESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220, 38043 Grenoble Cedex 9, France, Grenoble, 38043, FRANCE
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8
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Rath M, Mezhoud M, El Khaloufi O, Lebedev O, Cardin J, Labbé C, Gourbilleau F, Polewczyk V, Vinai G, Torelli P, Fouchet A, David A, Prellier W, Lüders U. Artificial Aging of Thin Films of the Indium-Free Transparent Conducting Oxide SrVO 3. ACS Appl Mater Interfaces 2023; 15:20240-20251. [PMID: 37067020 DOI: 10.1021/acsami.3c02421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
SrVO3 (SVO) is a prospective candidate to replace the conventional indium tin oxide (ITO) among the new generation of transparent conducting oxide (TCO) materials. In this study, the structural, electrical, and optical properties of SVO thin films, both epitaxial and polycrystalline, are determined during and after heat treatments in the 150-250 °C range and under ambient environment in order to explore the chemical stability of this material. The use of these relatively low temperatures speeds up the natural aging of the films and allows following the evolution of their related properties. The combination of techniques rather sensitive to the film surface and of techniques sampling the film volume will emphasize the presence of a surface oxidation evolving in time at low annealing temperatures, whereas the perovskite phase is destroyed throughout the film for treatments above 200 °C. The present study is designed to understand the thermal degradation and long-term stability issues of vanadate-based TCOs and to identify technologically viable solutions for the application of this group as new TCOs.
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Affiliation(s)
- Martando Rath
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Moussa Mezhoud
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Oualyd El Khaloufi
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Oleg Lebedev
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Julien Cardin
- CIMAP, CNRS, ENSICAEN, UNICAEN, Normandie Univ, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Christophe Labbé
- CIMAP, CNRS, ENSICAEN, UNICAEN, Normandie Univ, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Fabrice Gourbilleau
- CIMAP, CNRS, ENSICAEN, UNICAEN, Normandie Univ, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Vincent Polewczyk
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Giovanni Vinai
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Piero Torelli
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Arnaud Fouchet
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Adrian David
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Wilfrid Prellier
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 6, boulevard du Maréchal Juin, F-14050 Caen, France
| | - Ulrike Lüders
- Normandie Univ, ENSICAEN, UNICAEN, CNRS, CRISMAT, 6, boulevard du Maréchal Juin, F-14050 Caen, France
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9
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Brioschi M, Carrara P, Polewczyk V, Dagur D, Vinai G, Parisse P, Dal Zilio S, Panaccione G, Rossi G, Cucini R. Multidetection scheme for transient-grating-based spectroscopy. Opt Lett 2023; 48:167-170. [PMID: 36563397 DOI: 10.1364/ol.476958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/08/2022] [Indexed: 06/17/2023]
Abstract
Time-resolved optical spectroscopy represents an effective non-invasive approach to investigate the interplay of different degrees of freedom, which plays a key role in the development of novel functional materials. Here, we present magneto-acoustic data on Ni thin films on SiO2 as obtained by a versatile pump-probe setup that combines transient grating spectroscopy with time-resolved magnetic polarimetry. The possibility to easily switch from a pulsed to continuous wave probe allows probing of acoustic and magnetization dynamics on a broad time scale, in both transmission and reflection geometry.
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10
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De Vita A, Nguyen TTP, Sant R, Pierantozzi GM, Amoroso D, Bigi C, Polewczyk V, Vinai G, Nguyen LT, Kong T, Fujii J, Vobornik I, Brookes NB, Rossi G, Cava RJ, Mazzola F, Yamauchi K, Picozzi S, Panaccione G. Influence of Orbital Character on the Ground State Electronic Properties in the van Der Waals Transition Metal Iodides VI 3 and CrI 3. Nano Lett 2022; 22:7034-7041. [PMID: 36039834 PMCID: PMC9479147 DOI: 10.1021/acs.nanolett.2c01922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Two-dimensional van der Waals magnetic semiconductors display emergent chemical and physical properties and hold promise for novel optical, electronic and magnetic "few-layers" functionalities. Transition-metal iodides such as CrI3 and VI3 are relevant for future electronic and spintronic applications; however, detailed experimental information on their ground state electronic properties is lacking often due to their challenging chemical environment. By combining X-ray electron spectroscopies and first-principles calculations, we report a complete determination of CrI3 and VI3 electronic ground states. We show that the transition metal-induced orbital filling drives the stabilization of distinct electronic phases: a wide bandgap in CrI3 and a Mott insulating state in VI3. Comparison of surface-sensitive (angular-resolved photoemission spectroscopy) and bulk-sensitive (X-ray absorption spectroscopy) measurements in VI3 reveals a surface-only V2+ oxidation state, suggesting that ground state electronic properties are strongly influenced by dimensionality effects. Our results have direct implications in band engineering and layer-dependent properties of two-dimensional systems.
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Affiliation(s)
- Alessandro De Vita
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
- Dipartimento di Fisica, Università di Milano, Via Celoria 16, I-20133 Milano, Italy
| | - Thao Thi Phuong Nguyen
- Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka Ibaraki, Osaka 567-0047, Japan
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Roberto Sant
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, F-38043 Grenoble, France
| | - Gian Marco Pierantozzi
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
| | - Danila Amoroso
- Consiglio Nazionale delle Ricerche (CNR-SPIN), Unità di Ricerca presso Terzi c/o Università "G. D'Annunzio", 66100 Chieti, Italy
- NanoMat/Q-mat/CESAM, Université de Liège, B-4000 Liege, Belgium
| | - Chiara Bigi
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
- School of Physics and Astronomy, University of St. Andrews, St. Andrews KY16 9SS, United Kingdom
| | - Vincent Polewczyk
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
| | - Giovanni Vinai
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
| | - Loi T Nguyen
- Department of Chemistry, Princeton University, Princeton, New Jersey 08540, United States
| | - Tai Kong
- Department of Chemistry, Princeton University, Princeton, New Jersey 08540, United States
| | - Jun Fujii
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
| | - Ivana Vobornik
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
| | - Nicholas B Brookes
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, F-38043 Grenoble, France
| | - Giorgio Rossi
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
- Dipartimento di Fisica, Università di Milano, Via Celoria 16, I-20133 Milano, Italy
| | - Robert J Cava
- Department of Chemistry, Princeton University, Princeton, New Jersey 08540, United States
| | - Federico Mazzola
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
| | - Kunihiko Yamauchi
- Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka Ibaraki, Osaka 567-0047, Japan
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Silvia Picozzi
- Consiglio Nazionale delle Ricerche (CNR-SPIN), Unità di Ricerca presso Terzi c/o Università "G. D'Annunzio", 66100 Chieti, Italy
| | - Giancarlo Panaccione
- Laboratorio TASC, in Area Science Park, Istituto Officina dei Materiali (IOM)-CNR, S.S.14, Km 163.5, I-34149 Trieste, Italy
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11
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Mazzola F, Chaluvadi SK, Polewczyk V, Mondal D, Fujii J, Rajak P, Islam M, Ciancio R, Barba L, Fabrizio M, Rossi G, Orgiani P, Vobornik I. Disentangling Structural and Electronic Properties in V 2O 3 Thin Films: A Genuine Nonsymmetry Breaking Mott Transition. Nano Lett 2022; 22:5990-5996. [PMID: 35787096 DOI: 10.1021/acs.nanolett.2c02288] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Phase transitions are key in determining and controlling the quantum properties of correlated materials. Here, by using the combination of material synthesis and photoelectron spectroscopy, we demonstrate a genuine Mott transition undressed of any symmetry breaking side effects in the thin films of V2O3. In particular and in contrast with the bulk V2O3, we unveil the purely electronic dynamics approaching the metal-insulator transition, disentangled from the structural transformation that is prevented by the residual substrate-induced strain. On approaching the transition, the spectral signal evolves slowly over a wide temperature range, the Fermi wave-vector does not change, and the critical temperature is lower than the one reported for the bulk. Our findings are fundamental in demonstrating the universal benchmarks of a genuine nonsymmetry breaking Mott transition, extendable to a large array of correlated quantum systems, and hold promise of exploiting the metal-insulator transition by implementing V2O3 thin films in devices.
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Affiliation(s)
- Federico Mazzola
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | | | - Vincent Polewczyk
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | - Debashis Mondal
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | - Jun Fujii
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | - Piu Rajak
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | - Mahabul Islam
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | - Regina Ciancio
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | - Luisa Barba
- Istituto di Cristallografia del CNR, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | - Michele Fabrizio
- International School for Advanced Studies (SISSA), Via Bonomea 265, I-34149 Trieste, Italy
| | - Giorgio Rossi
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
- University of Milano, Via Celoria 16, I-20133 Milano, Italy
| | - Pasquale Orgiani
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
| | - Ivana Vobornik
- CNR-IOM, Area Science Park, Strada Statale 14 km 163.5, I-34149 Trieste, Italy
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12
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Chaluvadi SK, Polewczyk V, Petrov AY, Vinai G, Braglia L, Diez JM, Pierron V, Perna P, Mechin L, Torelli P, Orgiani P. Electronic Properties of Fully Strained La 1-x Sr x MnO 3 Thin Films Grown by Molecular Beam Epitaxy (0.15 ≤ x ≤ 0.45). ACS Omega 2022; 7:14571-14578. [PMID: 35557663 PMCID: PMC9088787 DOI: 10.1021/acsomega.1c06529] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/04/2022] [Indexed: 06/15/2023]
Abstract
The structural, electronic, and magnetic properties of Sr-hole-doped epitaxial La1-x Sr x MnO3 (0.15 ≤ x ≤ 0.45) thin films deposited using the molecular beam epitaxy technique on 4° vicinal STO (001) substrates are probed by the combination of X-ray diffraction and various synchrotron-based spectroscopy techniques. The structural characterizations evidence a significant shift in the LSMO (002) peak to the higher diffraction angles owing to the increase in Sr doping concentrations in thin films. The nature of the LSMO Mn mixed-valence state was estimated from X-ray photoemission spectroscopy together with the relative changes in the Mn L2,3 edges observed in X-ray absorption spectroscopy (XAS), both strongly affected by doping. CTM4XAS simulations at the XAS Mn L2,3 edges reveal the combination of epitaxial strain, and different MnO6 crystal field splitting give rise to a peak at ∼641 eV. The observed changes in the occupancy of the eg and the t2g orbitals as well as their binding energy positions toward the Fermi level with hole doping are discussed. The room-temperature magnetic properties were probed at the end by circular dichroism.
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Affiliation(s)
- Sandeep Kumar Chaluvadi
- Istituto
Officina dei Materiali (IOM)−CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Vincent Polewczyk
- Istituto
Officina dei Materiali (IOM)−CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Aleksandr Yu Petrov
- Istituto
Officina dei Materiali (IOM)−CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Giovanni Vinai
- Istituto
Officina dei Materiali (IOM)−CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Luca Braglia
- Istituto
Officina dei Materiali (IOM)−CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | | | - Victor Pierron
- Normandie
Univ, UNICAEN, ENSICAEN, CNRS, GREYC (UMR 6072), 14000 Caen, France
| | - Paolo Perna
- IMDEA-Nanociencia, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Laurence Mechin
- Normandie
Univ, UNICAEN, ENSICAEN, CNRS, GREYC (UMR 6072), 14000 Caen, France
| | - Piero Torelli
- Istituto
Officina dei Materiali (IOM)−CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
| | - Pasquale Orgiani
- Istituto
Officina dei Materiali (IOM)−CNR, Laboratorio TASC, Area Science Park, S.S.14, km 163.5, I-34149 Trieste, Italy
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13
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Dmitriyeva A, Mikheev V, Zarubin S, Chouprik A, Vinai G, Polewczyk V, Torelli P, Matveyev Y, Schlueter C, Karateev I, Yang Q, Chen Z, Tao L, Tsymbal EY, Zenkevich A. Magnetoelectric Coupling at the Ni/Hf 0.5Zr 0.5O 2 Interface. ACS Nano 2021; 15:14891-14902. [PMID: 34468129 DOI: 10.1021/acsnano.1c05001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Composite multiferroics containing ferroelectric and ferromagnetic components often have much larger magnetoelectric coupling compared to their single-phase counterparts. Doped or alloyed HfO2-based ferroelectrics may serve as a promising component in composite multiferroic structures potentially feasible for technological applications. Recently, a strong charge-mediated magnetoelectric coupling at the Ni/HfO2 interface has been predicted using density functional theory calculations. Here, we report on the experimental evidence of such magnetoelectric coupling at the Ni/Hf0.5Zr0.5O2(HZO) interface. Using a combination of operando XAS/XMCD and HAXPES/MCDAD techniques, we probe element-selectively the local magnetic properties at the Ni/HZO interface in functional Au/Co/Ni/HZO/W capacitors and demonstrate clear evidence of the ferroelectric polarization effect on the magnetic response of a nanometer-thick Ni marker layer. The observed magnetoelectric effect and the electronic band lineup of the Ni/HZO interface are interpreted based on the results of our theoretical modeling. It elucidates the critical role of an ultrathin NiO interlayer, which controls the sign of the magnetoelectric effect as well as provides a realistic band offset at the Ni/HZO interface, in agreement with the experiment. Our results hold promise for the use of ferroelectric HfO2-based composite multiferroics for the design of multifunctional devices compatible with modern semiconductor technology.
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Affiliation(s)
- Anna Dmitriyeva
- Moscow Institute of Physics and Technology, 9, Institutskiy lane, Dolgoprudny, Moscow Region, 141700, Russia
| | - Vitalii Mikheev
- Moscow Institute of Physics and Technology, 9, Institutskiy lane, Dolgoprudny, Moscow Region, 141700, Russia
| | - Sergei Zarubin
- Moscow Institute of Physics and Technology, 9, Institutskiy lane, Dolgoprudny, Moscow Region, 141700, Russia
| | - Anastasia Chouprik
- Moscow Institute of Physics and Technology, 9, Institutskiy lane, Dolgoprudny, Moscow Region, 141700, Russia
| | - Giovanni Vinai
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 km 163.5, Trieste I-34149, Italy
| | - Vincent Polewczyk
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 km 163.5, Trieste I-34149, Italy
| | - Piero Torelli
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 km 163.5, Trieste I-34149, Italy
| | - Yury Matveyev
- Deutsches Elektronen-Synchrotron, 85 Notkestraße, Hamburg, D-22607, Germany
| | | | - Igor Karateev
- National Research Center "Kurchatov Institute", Moscow, 123182, Russia
| | - Qiong Yang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Zhaojin Chen
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Lingling Tao
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Evgeny Y Tsymbal
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Andrei Zenkevich
- Moscow Institute of Physics and Technology, 9, Institutskiy lane, Dolgoprudny, Moscow Region, 141700, Russia
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14
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Polewczyk V, Magrin Maffei R, Vinai G, Lo Cicero M, Prato S, Capaldo P, Dal Zilio S, di Bona A, Paolicelli G, Mescola A, D’Addato S, Torelli P, Benedetti S. ZnO Thin Films Growth Optimization for Piezoelectric Application. Sensors (Basel) 2021; 21:6114. [PMID: 34577322 PMCID: PMC8472809 DOI: 10.3390/s21186114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/02/2021] [Accepted: 09/08/2021] [Indexed: 01/10/2023]
Abstract
The piezoelectric response of ZnO thin films in heterostructure-based devices is strictly related to their structure and morphology. We optimize the fabrication of piezoelectric ZnO to reduce its surface roughness, improving the crystalline quality, taking into consideration the role of the metal electrode underneath. The role of thermal treatments, as well as sputtering gas composition, is investigated by means of atomic force microscopy and x-ray diffraction. The results show an optimal reduction in surface roughness and at the same time a good crystalline quality when 75% O2 is introduced in the sputtering gas and deposition is performed between room temperature and 573 K. Subsequent annealing at 773 K further improves the film quality. The introduction of Ti or Pt as bottom electrode maintains a good surface and crystalline quality. By means of piezoelectric force microscope, we prove a piezoelectric response of the film in accordance with the literature, in spite of the low ZnO thickness and the reduced grain size, with a unipolar orientation and homogenous displacement when deposited on Ti electrode.
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Affiliation(s)
- Vincent Polewczyk
- Laboratorio TASC, Istituto Officina dei Materiali (IOM)-CNR, 34149 Trieste, Italy; (G.V.); (P.C.); (S.D.Z.); (P.T.)
| | - Riccardo Magrin Maffei
- Istituto Nanoscienze-CNR, Via Campi 213/a, 41125 Modena, Italy; (R.M.M.); (A.d.B.); (G.P.); (A.M.); (S.D.)
- Dipartimento di Scienze Fisiche Informatiche Matematiche, Università di Modena e Reggio Emilia, Via Campi 213/a, 41125 Modena, Italy
| | - Giovanni Vinai
- Laboratorio TASC, Istituto Officina dei Materiali (IOM)-CNR, 34149 Trieste, Italy; (G.V.); (P.C.); (S.D.Z.); (P.T.)
| | - Matteo Lo Cicero
- A.P.E. Research srl, Area Science Park, Basovizza, ss14 Km 163.5, 34149 Trieste, Italy; (M.L.C.); (S.P.)
| | - Stefano Prato
- A.P.E. Research srl, Area Science Park, Basovizza, ss14 Km 163.5, 34149 Trieste, Italy; (M.L.C.); (S.P.)
| | - Pietro Capaldo
- Laboratorio TASC, Istituto Officina dei Materiali (IOM)-CNR, 34149 Trieste, Italy; (G.V.); (P.C.); (S.D.Z.); (P.T.)
- Dipartimento di Fisica e Astronomia, Università di Padova, Via F Marzolo 8, 35131 Padova, Italy
| | - Simone Dal Zilio
- Laboratorio TASC, Istituto Officina dei Materiali (IOM)-CNR, 34149 Trieste, Italy; (G.V.); (P.C.); (S.D.Z.); (P.T.)
| | - Alessandro di Bona
- Istituto Nanoscienze-CNR, Via Campi 213/a, 41125 Modena, Italy; (R.M.M.); (A.d.B.); (G.P.); (A.M.); (S.D.)
| | - Guido Paolicelli
- Istituto Nanoscienze-CNR, Via Campi 213/a, 41125 Modena, Italy; (R.M.M.); (A.d.B.); (G.P.); (A.M.); (S.D.)
| | - Andrea Mescola
- Istituto Nanoscienze-CNR, Via Campi 213/a, 41125 Modena, Italy; (R.M.M.); (A.d.B.); (G.P.); (A.M.); (S.D.)
| | - Sergio D’Addato
- Istituto Nanoscienze-CNR, Via Campi 213/a, 41125 Modena, Italy; (R.M.M.); (A.d.B.); (G.P.); (A.M.); (S.D.)
- Dipartimento di Scienze Fisiche Informatiche Matematiche, Università di Modena e Reggio Emilia, Via Campi 213/a, 41125 Modena, Italy
| | - Piero Torelli
- Laboratorio TASC, Istituto Officina dei Materiali (IOM)-CNR, 34149 Trieste, Italy; (G.V.); (P.C.); (S.D.Z.); (P.T.)
| | - Stefania Benedetti
- Istituto Nanoscienze-CNR, Via Campi 213/a, 41125 Modena, Italy; (R.M.M.); (A.d.B.); (G.P.); (A.M.); (S.D.)
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15
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Giaconi N, Sorrentino AL, Poggini L, Lupi M, Polewczyk V, Vinai G, Torelli P, Magnani A, Sessoli R, Menichetti S, Sorace L, Viglianisi C, Mannini M. Stabilization of an Enantiopure Sub-monolayer of Helicene Radical Cations on a Au(111) Surface through Noncovalent Interactions. Angew Chem Int Ed Engl 2021; 60:15276-15280. [PMID: 33904633 PMCID: PMC8362206 DOI: 10.1002/anie.202103710] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/15/2021] [Indexed: 12/16/2022]
Abstract
In the past few years, the chirality and magnetism of molecules have received notable interest for the development of novel molecular devices. Chiral helicenes combine both these properties, and thus their nanostructuration is the first step toward developing new multifunctional devices. Here, we present a novel strategy to deposit a sub‐monolayer of enantiopure thia[4]helicene radical cations on a pre‐functionalized Au(111) substrate. This approach results in both the paramagnetic character and the chemical structure of these molecules being maintained at the nanoscale, as demonstrated by in‐house characterizations. Furthermore, synchrotron‐based X‐ray natural circular dichroism confirmed that the handedness of the thia[4]helicene is preserved on the surface.
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Affiliation(s)
- Niccolò Giaconi
- Department of Chemistry "Ugo Schiff" and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy.,Department of Industrial Engineering and INSTM Research Unit, University of Florence, Via Santa Marta 3, 50139, Florence, Italy
| | - Andrea Luigi Sorrentino
- Department of Chemistry "Ugo Schiff" and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy.,Department of Industrial Engineering and INSTM Research Unit, University of Florence, Via Santa Marta 3, 50139, Florence, Italy
| | - Lorenzo Poggini
- Department of Chemistry "Ugo Schiff" and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy.,Istituto di Chimica dei Composti Organometallici (ICCOM), CNR, Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - Michela Lupi
- Department of Chemistry "Ugo Schiff" and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Vincent Polewczyk
- Istituto Officina dei Materiali (IOM), CNR, Laboratorio TASC, Area Science Park, S.S. 14 km 163.5, 34149, Trieste, Italy
| | - Giovanni Vinai
- Istituto Officina dei Materiali (IOM), CNR, Laboratorio TASC, Area Science Park, S.S. 14 km 163.5, 34149, Trieste, Italy
| | - Piero Torelli
- Istituto Officina dei Materiali (IOM), CNR, Laboratorio TASC, Area Science Park, S.S. 14 km 163.5, 34149, Trieste, Italy
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy and INSTM Research Unit, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Roberta Sessoli
- Department of Chemistry "Ugo Schiff" and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Stefano Menichetti
- Department of Chemistry "Ugo Schiff" and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Lorenzo Sorace
- Department of Chemistry "Ugo Schiff" and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Caterina Viglianisi
- Department of Chemistry "Ugo Schiff" and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Matteo Mannini
- Department of Chemistry "Ugo Schiff" and INSTM Research Unit, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
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16
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Vinai G, Motti F, Petrov AY, Polewczyk V, Bonanni V, Edla R, Gobaut B, Fujii J, Suran F, Benedetti D, Salvador F, Fondacaro A, Rossi G, Panaccione G, Davidson BA, Torelli P. An integrated ultra-high vacuum apparatus for growth and in situ characterization of complex materials. Rev Sci Instrum 2020; 91:085109. [PMID: 32872955 DOI: 10.1063/5.0005302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
Here, we present an integrated ultra-high vacuum apparatus-named MBE-Cluster -dedicated to the growth and in situ structural, spectroscopic, and magnetic characterization of complex materials. Molecular Beam Epitaxy (MBE) growth of metal oxides, e.g., manganites, and deposition of the patterned metallic layers can be fabricated and in situ characterized by reflection high-energy electron diffraction, low-energy electron diffraction, Auger electron spectroscopy, x-ray photoemission spectroscopy, and azimuthal longitudinal magneto-optic Kerr effect. The temperature can be controlled in the range from 5 K to 580 K, with the possibility of application of magnetic fields H up to ±7 kOe and electric fields E for voltages up to ±500 V. The MBE-Cluster operates for in-house research as well as user facility in combination with the APE beamlines at Sincrotrone-Trieste and the high harmonic generator facility for time-resolved spectroscopy.
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Affiliation(s)
- G Vinai
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - F Motti
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - A Yu Petrov
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - V Polewczyk
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - V Bonanni
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - R Edla
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - B Gobaut
- Elettra-Sincrotrone Trieste S.C.p.A, Area Science Park, 34149 Basovizza, Trieste, Italy
| | - J Fujii
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - F Suran
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - D Benedetti
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - F Salvador
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - A Fondacaro
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - G Rossi
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - G Panaccione
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - B A Davidson
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
| | - P Torelli
- Istituto Officina dei Materiali (IOM)-CNR, Laboratorio TASC, Area Science Park, S.S. 14 Km 163.5, Trieste I-34149, Italy
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Polewczyk V, Hehn M, Hillion A, Robert S, Boulet P, Dumesnil K. Epitaxial growth of TbFe 2 on piezoelectric LiNbO 3 Z-cut. J Phys Condens Matter 2020; 32:235803. [PMID: 32053804 DOI: 10.1088/1361-648x/ab75ff] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The strongly magnetostrictive TbFe2 compound has been epitaxially grown on Z-cut Lithium Niobate (LiNbO3) substrates after the deposition of various buffer layers (Mo, Ti and Ti/Mo). Detailed and combined RHEED and x-ray analysis permitted to unravel the in-plane and relative orientation relationships (OR) of the different materials in the system. Despite the use of different templates with different structural orders, similar final OR are eventually found between the piezoelectric substrate and the magnetic layer. The structural and magnetic properties are analyzed in order to get a TbFe2 layer of optimum quality to build a magnetostrictive/piezoelectric hybrid system with efficient strain mediated coupling. Such systems are of interest for the development of magnetic sensors as well as for the electric control of magnetization.
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Affiliation(s)
- Vincent Polewczyk
- Institut Jean Lamour (UMR 7198), CNRS-Université de Lorraine, 54000 Nancy, France
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Polewczyk V, Hehn M, Hillion A, Robert S, Boulet P, Dumesnil K. Epitaxial growth of magnetostrictive TbFe2 films on piezoelectric LiNbO3. J Phys Condens Matter 2019; 31:405801. [PMID: 31174194 DOI: 10.1088/1361-648x/ab27e6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The TbFe2 compound has been deposited by molecular beam epitaxy on lithium niobate (LN) substrates with different orientations (LN Z-, 128 Y- and 41 Y-cuts). Despite the challenging growth on these unconventional substrates, crystalline TbFe2 films (as a single orientated domain or with a limited number of orientations) of reasonable structural quality could be obtained after the deposition of a Mo buffer layer. Detailed and combined RHEED and x-ray analysis permitted to unravel the complex Mo and TbFe2 crystal orientations and to reveal common 3D orientation relationships between the different lattices, whatever the initial LN cut. The magnetic properties and especially the magnetic anisotropy have been investigated in taking magnetocrystalline, magnetoelastic and magnetostatic contributions into account. These promising results on the epitaxial growth of hybrid piezoelectric/magnetostrictive crystalline system constitute an important step towards the control of magnetization via electrically generated static and/or dynamic strains, and towards the development of magnetic sensors based on surface acoustic wave devices.
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Affiliation(s)
- Vincent Polewczyk
- Institut Jean Lamour, CNRS-Université de Lorraine, 54000 Nancy, France
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