Theory of the 4d → 2p and 4f → 4d x-ray emission spectroscopies in rare-earth compounds

Satoshi Tanaka, Haruhiko Ogasawara, Kozo Okada, Akio Kotani

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The 4d → 2p x-ray emission spectra (XES) of rare-earth compounds are calculated with an impurity Anderson model with the full multiplet couplings, following the formula of a coherent second order optical process. Recent experiments are well reproduced with this model by using a constant value for the 4d core hole lifetime damping Γ(4d) in light rare-earth compounds. On the other hand, in heavy rare-earth compounds it is necessary to take into account the term dependence of Γ(4d). The 4f → 4d XES of Dy2O3 is also investigated theoretically. The multiplet term dependence of the 4d core hole lifetime affects more drastically the spectral shape in the 4f → 4d XES than in the 4d → 2p XES. Some theoretical predictions are also given on the coincidence spectra between the 4d-XPS and 4f → 4d XES.

Original languageEnglish
Pages (from-to)199-202
Number of pages4
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume79
DOIs
Publication statusPublished - May 1996
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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