Core-level photoemission spectra of low-dimensional copper-oxide systems

Kozo Okada, Akio Kotani

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Intersite screening effects on the Cu 2p X-ray photoemission spectrum (XPS) are discussed for low-dimensional Cu-O systems on the basis of Lanczos calculations for multiple-Cu-site clusters. The effects are compared between edge-sharing and corner-sharing one-dimensional systems and between one- and two-dimensional systems. The line shape of the calculated Cu 2p XPS differs considerably for these systems, reflecting the different charge distributions in the photoemission final states. These results are compared with the experimental spectra of Bi2CuO4, Sr2CuO3, CuGeO3, La2CuO4 and Sr2CuO2Cl2.

Original languageEnglish
Pages (from-to)119-126
Number of pages8
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume86
Issue number1-3
Publication statusPublished - Aug 1 1997
Externally publishedYes

Keywords

  • Core-level photoemission
  • Corner-sharing
  • Edge-sharing
  • Exact diagonalization
  • Intersite screening
  • Multiband Hubbard model

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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