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Higashi K, Yamaguchi T, Takahashi Y, Hariki A. Charge-transfer effect in Fe 2 pcore-level x-ray photoemission spectra of trivalent Fe oxides: LDA + DMFT study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:375602. [PMID: 35793685 DOI: 10.1088/1361-648x/ac7f18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Motivated by recent hard x-ray photoemission spectroscopy (XPS) experiment for trivalent Fe oxides Sr2FeMoO6(ferrimagnetic correlated metal) and LaFeO3(antiferromagnetic Mott insulator) (Phuyalet al2021J. Phys. Chem.C12511249-56), we present a theoretical analysis of the Fe 2pcore-level spectra using a computational method based on local density approximation combined with dynamical mean-field theory. We find that a nonlocal screening (NLS) effect in the XPS final states is crucial for interpreting the experimental XPS result of both the Fe oxides. A close relationship between the NLS feature in core-level spectra and a long-range magnetic ordering is emphasized.
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Affiliation(s)
- Keisuke Higashi
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Tatsuya Yamaguchi
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Yoshihiro Takahashi
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Atsushi Hariki
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
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2
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Bagus PS, Brundle C, Ilton ES. A rigorous non-empirical theoretical analysis of the 2p XPS of NiO: Is it necessary to invoke nonlocal screening? J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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3
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Chainani A, Sicot M, Fagot-Revurat Y, Vasseur G, Granet J, Kierren B, Moreau L, Oura M, Yamamoto A, Tokura Y, Malterre D. Evidence for Weakly Correlated Oxygen Holes in the Highest-T_{c} Cuprate Superconductor HgBa_{2}Ca_{2}Cu_{3}O_{8+δ}. PHYSICAL REVIEW LETTERS 2017; 119:057001. [PMID: 28949729 DOI: 10.1103/physrevlett.119.057001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Indexed: 06/07/2023]
Abstract
We study the electronic structure of HgBa_{2}Ca_{2}Cu_{3}O_{8+δ} (Hg1223; T_{c}=134 K) using photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). Resonant valence band PES across the O K edge and Cu L edge identifies correlation satellites originating in O 2p and Cu 3d two-hole final states, respectively. Analyses using the experimental O 2p and Cu 3d partial density of states show quantitatively different on-site Coulomb energy for the Cu site (U_{dd}=6.5±0.5 eV) and O site (U_{pp}=1.0±0.5 eV). Cu_{2}O_{7}-cluster calculations with nonlocal screening explain the Cu 2p core level PES and Cu L-edge XAS spectra, confirm the U_{dd} and U_{pp} values, and provide evidence for the Zhang-Rice singlet state in Hg1223. In contrast to other hole-doped cuprates and 3d-transition metal oxides, the present results indicate weakly correlated oxygen holes in Hg1223.
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Affiliation(s)
- A Chainani
- RIKEN SPring-8 Centre, 1-1-1 Sayo-cho, Hyogo 679-5148, Japan
- Institut Jean Lamour, Université de Lorraine, UMR 7198 CNRS, BP70239, 54506 Vandoeuvre lés Nancy, France
| | - M Sicot
- Institut Jean Lamour, Université de Lorraine, UMR 7198 CNRS, BP70239, 54506 Vandoeuvre lés Nancy, France
| | - Y Fagot-Revurat
- Institut Jean Lamour, Université de Lorraine, UMR 7198 CNRS, BP70239, 54506 Vandoeuvre lés Nancy, France
| | - G Vasseur
- Institut Jean Lamour, Université de Lorraine, UMR 7198 CNRS, BP70239, 54506 Vandoeuvre lés Nancy, France
| | - J Granet
- Institut Jean Lamour, Université de Lorraine, UMR 7198 CNRS, BP70239, 54506 Vandoeuvre lés Nancy, France
| | - B Kierren
- Institut Jean Lamour, Université de Lorraine, UMR 7198 CNRS, BP70239, 54506 Vandoeuvre lés Nancy, France
| | - L Moreau
- Institut Jean Lamour, Université de Lorraine, UMR 7198 CNRS, BP70239, 54506 Vandoeuvre lés Nancy, France
| | - M Oura
- RIKEN SPring-8 Centre, 1-1-1 Sayo-cho, Hyogo 679-5148, Japan
| | - A Yamamoto
- Strong Correlation Physics Division, RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - Y Tokura
- Strong Correlation Physics Division, RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - D Malterre
- Institut Jean Lamour, Université de Lorraine, UMR 7198 CNRS, BP70239, 54506 Vandoeuvre lés Nancy, France
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Bisogni V, Kourtis S, Monney C, Zhou K, Kraus R, Sekar C, Strocov V, Büchner B, van den Brink J, Braicovich L, Schmitt T, Daghofer M, Geck J. Femtosecond dynamics of momentum-dependent magnetic excitations from resonant inelastic X-ray scattering in CaCu2O3. PHYSICAL REVIEW LETTERS 2014; 112:147401. [PMID: 24766010 DOI: 10.1103/physrevlett.112.147401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Indexed: 06/03/2023]
Abstract
Taking spinon excitations in the quantum antiferromagnet CaCu2O3 as an example, we demonstrate that femtosecond dynamics of magnetic electronic excitations can be probed by direct resonant inelastic x-ray scattering (RIXS). To this end, we isolate the contributions of single and double spin-flip excitations in experimental RIXS spectra, identify the physical mechanisms that cause them, and determine their respective time scales. By comparing theory and experiment, we find that double spin flips need a finite amount of time to be generated, rendering them sensitive to the core-hole lifetime, whereas single spin flips are, to a very good approximation, independent of it. This shows that RIXS can grant access to time-domain dynamics of excitations and illustrates how RIXS experiments can distinguish between excitations in correlated electron systems based on their different time dependence.
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Affiliation(s)
- Valentina Bisogni
- Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany and Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Stefanos Kourtis
- Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany
| | - Claude Monney
- Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Kejin Zhou
- Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Roberto Kraus
- Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany
| | - Chinnathambi Sekar
- Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany
| | - Vladimir Strocov
- Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Bernd Büchner
- Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany and Department of Physics, Technical University Dresden, D-1062 Dresden, Germany
| | - Jeroen van den Brink
- Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany and Department of Physics, Technical University Dresden, D-1062 Dresden, Germany
| | - Lucio Braicovich
- CNR/SPIN, CNISM, and Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Thorsten Schmitt
- Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Maria Daghofer
- Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany
| | - Jochen Geck
- Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany
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Mossanek RJO, Abbate M. Similarities in the screening effects of the core level and valence band spectra of VO2. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:375602. [PMID: 21403203 DOI: 10.1088/0953-8984/22/37/375602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We calculated the core level and valence band spectra of VO(2) using an extended cluster model. The distribution of spectral weight is similar in both core level and valence band spectra and is related to the different screening mechanisms. Namely, the low energy structures in the spectra correspond to well screened final states, whereas the poorly screened final states appear at higher energies. The latter produce the charge transfer satellite observed in the core level spectra, and are related to the resonance in the constant initial state spectra of the valence band. The changes in the spectral weight across the metal-insulator transition are due to the different non-local screening channels present in each phase, and are also similar in both core level and valence band spectra. The calculation also shows a relatively large O 2p contribution in both spectra, which, in turn, helps to explain the enhancement of the coherent feature at higher photon energies. This suggests that the incoherent peak cannot be solely attributed to the lower Hubbard band.
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Affiliation(s)
- R J O Mossanek
- Departamento de Física, Universidade Federal do Paraná, Curitiba PR, Brazil
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6
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Charge-Excitation Final States: Satellites. ACTA ACUST UNITED AC 2003. [DOI: 10.1007/978-3-662-09280-4_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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7
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Sangaletti L. The effect of ligand correlations on the one-electron removal valence band of NiO. Chem Phys Lett 1997. [DOI: 10.1016/s0009-2614(97)00554-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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8
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Turner NH, Schreifels JA. Surface Analysis: X-ray Photoelectron Spectroscopy and Auger Electron Spectroscopy. Anal Chem 1996. [DOI: 10.1021/a19600146] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noel H. Turner
- Chemistry Division, Naval Research Laboratory, Washington, D.C. 20375-5342
| | - John A. Schreifels
- Department of Chemistry, George Mason University, Fairfax, Virginia 22030
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