Origin of magnetic circular dichroism in soft x-ray fluorescence of Heusler alloys at threshold excitation

Autor(en): Yablonskikh, MV
Yarmoshenko, YM
Grebennikov, VI
Kurmaev, EZ
Butorin, SM
Duda, LC
Nordgren, J
Plogmann, S
Neumann, M
Stichwörter: CO; EMISSION; FE; Materials Science; Materials Science, Multidisciplinary; MOMENTS; Physics; Physics, Applied; Physics, Condensed Matter; SPECTRA; SPECTROSCOPY; VALENCE STATES
Erscheinungsdatum: 2001
Herausgeber: AMER PHYSICAL SOC
Enthalten in: PHYSICAL REVIEW B
Band: 63
Ausgabe: 23
Zusammenfassung: 
The results of investigations of the Heusler alloys NiMnSb and Co2MnSb by magnetic circular dichroism in soft x-ray emission spectroscopy (SXEMCD) are presented. The data obtained are in a good agreement with theoretical calculations of x-ray emission. A very intense resonant inelastic peak in the Mn L-3 spectra in the region of states above the nominal Fermi level was observed and attributed to x-ray reemission. The interplay between the theoretically predicted half-metallic character of the Mn 3d valence band and the Mn L-2,L-3 SXEMCD spectra is discussed.
ISSN: 10980121
DOI: 10.1103/PhysRevB.63.235117

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