Zhang-Rice singlet-state formation by oxygen 1s resonant x-ray emission in edge-sharing copper-oxide systems

Kozo Okada, Akio Kotani

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Resonant behavior of O 1s x-ray emission spectrum (XES) in Cu-based oxides, such as CuGeO3 and Li2CuO2, is investigated through the model calculations using an edge-sharing Cu2O6 cluster. It is shown that the inelastic peaks that originate from the Cu d-d excitations and the Zhang-Rice singlet excitation can be observed on resonance, which indicates the importance of the many-body effects in discussing the O 1s resonant XES. It is shown that the Zhang-Rice singlet state can be excited in the O 1s XES final state when the Cu spins configuration around the irradiated O site is antiferromagnetic. Therefore the experiment at low temperatures is highly desired.

Original languageEnglish
Article number045103
Pages (from-to)451031-451034
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number4
DOIs
Publication statusPublished - Jan 1 2001

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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