Journal of the Magnetics Society of Japan
Online ISSN : 1880-4004
Print ISSN : 0285-0192
ISSN-L : 0285-0192
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Volume 22, Issue 11
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Contributed Paper
  • First-Principles Calculations of the Magneto-optical Kerr Effect of L10-Type Ordered Alloys
    M. Yamaguchi, T. Kusakabe, K. Kyuno, S. Asano
    1998 Volume 22 Issue 11 Pages 1401-1406
    Published: 1998
    Released on J-STAGE: June 29, 2007
    DOIhttps://doi.org/10.3379/jmsjmag.22.1401
    JOURNAL OPEN ACCESS
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    The magneto-optical polar Kerr effect of L10-type ordered alloys TM-X (TM = Mn, Fe, Co, X = Pt, Au) was calculated from the electronic structures given by the first-principles LMTO-ASA method. The calculated results agreed reasonably well with the experimental results. The important optical transitions were clarified by detailed analysis of the electronic structures. For example, it was found that the peak structure at about 4 eV in the Kerr spectra of L10-FeAu mainly originated from the d↓→f↓ transition on Au. In this transition, the final state Au (f↓) is a small tail state hybridized with the unoccupied Fe (3d↓) state. Thus, the transition can simply be expressed as the Au (5d↓)→Fe (3d↓) transition.
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