Theory of core level X-ray photoemission and photoabsorption in Ti compounds

Kozo Okada, Akio Kotani

Research output: Contribution to journalArticlepeer-review

121 Citations (Scopus)


We analyze the Ti2p X-ray photoemission spectroscopy (XPS) and photoabsorption spectroscopy (XAS) spectra in formally tetravalent Ti compounds such as TiO2, SrTiO3 and BaTiO3, by means of a TiO6 cluster model, paying particular attention to the interplay between the Ti3dO2p hybridization and the intra-atomic multiplet coupling. We also show that the satellite peaks observed in the Ti2p XPS and XAS spectra can be understood as charge transfer satellites, although they have until now been ascribed to the exciton satellite which originates from the excitation from the O2p to O3s states.

Original languageEnglish
Pages (from-to)131-140
Number of pages10
JournalJournal of Electron Spectroscopy and Related Phenomena
Issue number1-2
Publication statusPublished - Mar 1993
Externally publishedYes

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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