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 journalConference articlepeer-review

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
EventProceedings of the Conference on Polarised Neutron - Venice, Italy
Duration: Aug 4 2003Aug 6 2003

Keywords

  • Cluster model
  • L absorption edges
  • Magnetic circular dichroism

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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