Cu 2p X-ray absorption and Cu 2p-3d resonant photoemission spectroscopy of LaCuO3

T. Mizokawa, T. Konishi, A. Fujimori, Z. Hiroi, M. Takano, Y. Takeda

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

In order to study the effect of intercluster interaction on the high-energy spectroscopy of formally Cu3+ oxides, we have performed X-ray absorption spectroscopy (XAS) and Cu 2p-3d resonant photoemission spectroscopy (RPES) studies of rhombohedrally distorted LaCuO3. In the Cu 2p XAS spectrum, the Cu 2p3/2 main peak is split into two structures, indicating that the interaction between the CuO6 octahedral clusters is strong. The valence-band RPES spectrum shows an enhanced satellite structure at ∼ 12.5 eV, similar to that of Cu2+ oxides for the incident photon energies which create intermediate states well screened by the intercluster interaction. For the incident photon energy for the poorly screened intermediate state, the enhanced satellite structure becomes broad and has a maximum at ∼ 13 eV.

Original languageEnglish
Pages (from-to)97-101
Number of pages5
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume92
Issue number1-3
DOIs
Publication statusPublished - 1998 May
Externally publishedYes

Keywords

  • Cu oxide
  • Intercluster interaction
  • Resonant photoemission spectroscopy
  • X-ray absorption spectroscopy

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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