Split-Off State Formation in the Final State of Photoemission in Ti Compounds

Kozo Okada, Akio Kotani

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)


We calculate the Ti 3p and 3s core-level X-ray photoemission spectra (XPS) of tetravalent Ti compounds, such as TiO2 and SrTiO3. Because of the strong hybridization between the Ti 3d and O 2p orbitals, a small number of states split off in the final state of photoemission, giving the narrow main peak in the Ti 3p and 3s-XPS as well as 2p-XPS. In the case of the Ti 3s-XPS, the satellite structure due to the intra-atomic configuration interaction is fairly intense, though it is much broadened by the hybridization. We also discuss the close relationship of the final state structures between the valence band photoemission of the trivalent Ti compounds and the core-level pho-temission of the tetravalent Ti compounds.

Original languageEnglish
Pages (from-to)3176-3184
Number of pages9
Journaljournal of the physical society of japan
Issue number8
Publication statusPublished - Jan 1 1994
Externally publishedYes


  • 2p
  • 3s
  • SrTiO3
  • Ti 3p
  • TiO2
  • charge transfer
  • cluster model
  • configuration interaction
  • core level photoemission
  • hybridization
  • multiplet
  • split-off state
  • transition metal

ASJC Scopus subject areas

  • General Physics and Astronomy


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