X-ray magnetic circular dichroism at the U M{sub 4,5} absorption edges of UFe{sub 2}
- Laboratoire pour lUtilisation du Rayonnement Electromagnetique, Batiment 209D, Universite Paris-Sud, 91405 Orsay Cedex (France)
- CEA, Departement de Recherche Fondamentale sur la Matiere Condensee, SPSMS, 38054 Grenoble Cedex 9 (France)
- European Synchrotron Radiation Facility, Boite Postale 220, 38043 Grenoble Cedex (France)
We present an x-ray magnetic circular dichroism study performed at the U M{sub 4,5} edges on UFe{sub 2}, a ferromagnet with almost itinerant 5f electrons. The analysis of the branching ratio of the U M{sub 4,5} edges confirms the fact that the occupation number of the 5f states in UFe{sub 2} is lower than in other compounds where the f electrons are more localized. Magnetic circular dichroism effects are observed consistently with the presence of an orbital 5f magnetic moment which aligns parallel to the total magnetic moment. In agreement with a polarized neutron study, we find a nearly perfect cancellation of the U-5f spin and orbital magnetic moments, which results in a vanishing small total U-5f magnetic moment. Results are discussed in comparison with atomic multiplet calculations. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 450366
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 5 Vol. 55; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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