Acoustic plasmons and doping evolution of Mott physics in resonant inelastic x-ray scattering from cuprate superconductors

R. S. Markiewicz, M. Z. Hasan, A. Bansil

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

By incorporating a long-range Coulomb interaction into the framework of the one-band Hubbard model, we delineate how the low-energy plasmon around 1 eV, which is a universal feature of the charge dynamics of the cuprates, manifests itself in the resonant inelastic x-ray scattering (RIXS) spectra. The long-range Coulomb interaction in the doped system controls the form of the intraband RIXS dispersion near the Brillouin zone center around the Γ point. The out-of-plane momentum transfer component qz is found to play a key role in determining whether or not the RIXS spectrum shows a plasmon-related gap at Γ.

Original languageEnglish (US)
Article number094518
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume77
Issue number9
DOIs
StatePublished - Mar 25 2008

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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