Theory of the 4d→2p X-ray emission spectroscopy in Ce 2O3, Pr2O3 and Dy2O 3

Satoshi Tanaka, Haruhiko Ogasawara, Kozo Okada, Kozo Okada

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The 4d→2p X-ray emission spectra (XES) of Ce2O3, Pr2O3 and Dy2O3 have been calculated with an impurity Anderson model with the full multiplet couplings, following the Kramers-Heisenberg formula in the second order optical process. Experimental results have been well reproduced with this model by using a constant value for the 4d core hole lifetime damping Γ (4d) in the case of Ce 2O3 and Pr2O3, while in the case of Dy2O3 it is necessary to take into account the term dependence of Γ (4d), which is consistent with the previous theoretical analyses of 4d X-ray photoemission spectra. It was also shown that both the spin-orbit couplings of the 4d core level in the final state and the 4 f level in the initial state are key factors to cause the branching ratio in the L γ line larger than that in the Lβ line. The phase matching of the wave functions between the intermediate and final states smears out the hybridization effect in the 4d→2p XES in Ce 2O3 and Pr2O3.

Original languageEnglish
Pages (from-to)2225-2232
Number of pages8
JournalJournal of the Physical Society of Japan
Volume64
Issue number6
Publication statusPublished - Jun 1995
Externally publishedYes

Fingerprint

emission spectra
spectroscopy
smear
x rays
phase matching
photoelectric emission
damping
fine structure
wave functions
orbits
life (durability)
impurities
causes

Keywords

  • 4d core hole decay
  • Branching ratio
  • L line
  • L line
  • Rare-earth compounds
  • X-ray emission

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Theory of the 4d→2p X-ray emission spectroscopy in Ce 2O3, Pr2O3 and Dy2O 3. / Tanaka, Satoshi; Ogasawara, Haruhiko; Okada, Kozo; Okada, Kozo.

In: Journal of the Physical Society of Japan, Vol. 64, No. 6, 06.1995, p. 2225-2232.

Research output: Contribution to journalArticle

Tanaka, Satoshi ; Ogasawara, Haruhiko ; Okada, Kozo ; Okada, Kozo. / Theory of the 4d→2p X-ray emission spectroscopy in Ce 2O3, Pr2O3 and Dy2O 3. In: Journal of the Physical Society of Japan. 1995 ; Vol. 64, No. 6. pp. 2225-2232.
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AB - The 4d→2p X-ray emission spectra (XES) of Ce2O3, Pr2O3 and Dy2O3 have been calculated with an impurity Anderson model with the full multiplet couplings, following the Kramers-Heisenberg formula in the second order optical process. Experimental results have been well reproduced with this model by using a constant value for the 4d core hole lifetime damping Γ (4d) in the case of Ce 2O3 and Pr2O3, while in the case of Dy2O3 it is necessary to take into account the term dependence of Γ (4d), which is consistent with the previous theoretical analyses of 4d X-ray photoemission spectra. It was also shown that both the spin-orbit couplings of the 4d core level in the final state and the 4 f level in the initial state are key factors to cause the branching ratio in the L γ line larger than that in the Lβ line. The phase matching of the wave functions between the intermediate and final states smears out the hybridization effect in the 4d→2p XES in Ce 2O3 and Pr2O3.

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