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Strongly Correlated Charge Density Wave in La_{2-x}Sr_{x}CuO_{4} Evidenced by Doping-Dependent Phonon Anomaly.
Lin, J Q; Miao, H; Mazzone, D G; Gu, G D; Nag, A; Walters, A C; García-Fernández, M; Barbour, A; Pelliciari, J; Jarrige, I; Oda, M; Kurosawa, K; Momono, N; Zhou, Ke-Jin; Bisogni, V; Liu, X; Dean, M P M.
Afiliación
  • Lin JQ; Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Miao H; School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
  • Mazzone DG; Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
  • Gu GD; University of Chinese Academy of Sciences, Beijing 100049, China.
  • Nag A; Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Walters AC; Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
  • García-Fernández M; Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Barbour A; Diamond Light Source, Harwell Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom.
  • Pelliciari J; Diamond Light Source, Harwell Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom.
  • Jarrige I; Diamond Light Source, Harwell Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom.
  • Oda M; National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Kurosawa K; National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Momono N; National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Zhou KJ; Department of Physics, Hokkaido University, Sapporo 060-0810, Japan.
  • Bisogni V; Department of Physics, Hokkaido University, Sapporo 060-0810, Japan.
  • Liu X; Department of Sciences and Informatics, Muroran Institute of Technology, Muroran 050-8585, Japan.
  • Dean MPM; Diamond Light Source, Harwell Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom.
Phys Rev Lett ; 124(20): 207005, 2020 May 22.
Article en En | MEDLINE | ID: mdl-32501068
The discovery of charge-density-wave-related effects in the resonant inelastic x-ray scattering spectra of cuprates holds the tantalizing promise of clarifying the interactions that stabilize the electronic order. Here, we report a comprehensive resonant inelastic x-ray scattering study of La_{2-x}Sr_{x}CuO_{4} finding that charge-density wave effects persist up to a remarkably high doping level of x=0.21 before disappearing at x=0.25. The inelastic excitation spectra remain essentially unchanged with doping despite crossing a topological transition in the Fermi surface. This indicates that the spectra contain little or no direct coupling to electronic excitations near the Fermi surface, rather they are dominated by the resonant cross section for phonons and charge-density-wave-induced phonon softening. We interpret our results in terms of a charge-density wave that is generated by strong correlations and a phonon response that is driven by the charge-density-wave-induced modification of the lattice.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos