Electron-phonon interaction in correlated cuprate superconductors

Sumio Ishihara, Naoto Nagaosa

Research output: Contribution to journalArticlepeer-review

Abstract

Electron-phonon interaction in the strongly correlated superconducting cuprates is studied. Two types of the electron-phonon interactions, i.e. the diagonal and off-diagonal interactions which modify the formation energy of the Zhang-Rice singlet and its transfer integral, respectively, are introduced in the t-J model. The characteristic phonon-momentum and electron-momentum dependence which are resulted from the off-diagonal coupling can explain a variety of experiments. We show that the vertex correction for the electron-phonon interaction enhances the attractive potential for the d-wave pairing.

Original languageEnglish
Pages (from-to)154-156
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Volume67
Issue number1-3
DOIs
Publication statusPublished - 2006 Jan

Keywords

  • D. Electronic structure
  • D. Phonons
  • D. Super conductivity

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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