Doping-dependent quasiparticle band structure in cuprate superconductors

R Eder*, Y. Ohta, G.A Sawatzky

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

69 Citations (Scopus)

Abstract

We present an exact diagonalization study of the single-particle spectral function in the so-called t-t'-t ''-J model in two dimensions. As a key result, we find that hole doping leads to a major reconstruction of the quasiparticle band structure near (pi,0): whereas for the undoped system the quasiparticle states near (pi,0) are deep below the top of the band near (pi/2,pi/2), hole doping shifts these states up to E(F), resulting in extended flat band regions close to E(F) and around (pi,0).

Original languageEnglish
Pages (from-to)R3414-R3417
Number of pages4
JournalPhysical Review B
Volume55
Issue number6
Publication statusPublished - 1-Feb-1997

Keywords

  • T-J MODEL
  • ELECTRONIC STATES
  • SR2CUO2CL2

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