Many-body effects in magnetic circular dichroism at Ce L2,3 absorption edges in CeFe2

K. Asakura, K. Fukui, H. Ogasawara, I. Harada, J. C. Parlebas, A. Kotani

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Magnetic circular dichroism (MCD) of the X-ray absorption spectroscopy (XAS) at the Ce L2,3 edges in a typical mixed valence compound, CeFe2, is theoretically studied by using the impurity Anderson model combined with a cluster approach. We find that the hybridization of Ce 5d states with spin-polarized Fe 3d states is responsible for the differences between XAS and MCD, while the Coulomb interaction of a photo-excited 5d electrons plays a novel role, in addition to the many body effects yielding the two-peak structure of XAS.

Original languageEnglish
Pages (from-to)201-204
Number of pages4
JournalPhysica B: Condensed Matter
Volume345
Issue number1-4
DOIs
Publication statusPublished - Mar 1 2004

Fingerprint

X ray absorption spectroscopy
Dichroism
dichroism
absorption spectroscopy
x rays
Coulomb interactions
Impurities
valence
impurities
Electrons
electrons
interactions

Keywords

  • Cluster model
  • L absorption edges
  • Magnetic circular dichroism

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Asakura, K., Fukui, K., Ogasawara, H., Harada, I., Parlebas, J. C., & Kotani, A. (2004). Many-body effects in magnetic circular dichroism at Ce L2,3 absorption edges in CeFe2 . Physica B: Condensed Matter, 345(1-4), 201-204. https://doi.org/10.1016/j.physb.2003.11.054

Many-body effects in magnetic circular dichroism at Ce L2,3 absorption edges in CeFe2 . / Asakura, K.; Fukui, K.; Ogasawara, H.; Harada, I.; Parlebas, J. C.; Kotani, A.

In: Physica B: Condensed Matter, Vol. 345, No. 1-4, 01.03.2004, p. 201-204.

Research output: Contribution to journalArticle

Asakura, K, Fukui, K, Ogasawara, H, Harada, I, Parlebas, JC & Kotani, A 2004, 'Many-body effects in magnetic circular dichroism at Ce L2,3 absorption edges in CeFe2 ', Physica B: Condensed Matter, vol. 345, no. 1-4, pp. 201-204. https://doi.org/10.1016/j.physb.2003.11.054
Asakura, K. ; Fukui, K. ; Ogasawara, H. ; Harada, I. ; Parlebas, J. C. ; Kotani, A. / Many-body effects in magnetic circular dichroism at Ce L2,3 absorption edges in CeFe2 . In: Physica B: Condensed Matter. 2004 ; Vol. 345, No. 1-4. pp. 201-204.
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