Coulomb correlated electronic band structure of cuprate superconductors

Jaejun Yu, Arthur J Freeman

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The effect of Coulomb correlations on the electronic structure of Cu-oxide superconductors are determined with the many-body corrections to the known band structure made by calculating perturbatively the self-energy due to the on-site Coulomb interaction at the Cu sites. The effective mass enhancement at EF, renormalized band dispersions, and the energy dependence of the band state broadening for Nd2-xCexCuO4 are predicted and found to be in agreement with observations in other Cu-oxide superconductors with a choice of the effective Coulomb interaction parameter U=3 eV.

Original languageEnglish
Pages (from-to)274-284
Number of pages11
JournalPhysica C: Superconductivity and its Applications
Volume173
Issue number3-4
DOIs
Publication statusPublished - Feb 1 1991

ASJC Scopus subject areas

  • Condensed Matter Physics

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