Evidence of local singlet state in NaCuO2 from Cu 2p X-ray photoemission and photoabsorption spectra

K. Okada, A. Kotani, B. T. Thole, G. A. Sawatzky

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18 Citations (Scopus)


The electronic structure of a nominally trivalent Cu compound, NaCuO2, is discussed through the detailed analysis of the multiplet structures of the Cu 2p-XAS (X-ray absorption spectroscopy) and XPS (X-ray photoemission spectroscopy) spectra. It is shown that the ground state is a local singlet state. 1A1 as in low spin Cu3+ compounds but the charge is to a large extent on the oxygen in O 2p orbitals.

Original languageEnglish
Pages (from-to)835-838
Number of pages4
JournalSolid State Communications
Issue number11
Publication statusPublished - Mar 1991
Externally publishedYes

ASJC Scopus subject areas

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


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