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Magnetic circular dichroism in X-ray fluorescence of Heusler alloys at threshold excitation

M. V. Yablonskikh·A. V. Ezhov·V. I. Grebennikov·Yu. M. Yarmoshenko·E. Z. Kurmaev·S. M. Butorin·L. -C. Duda·C. Sothe·T. Kaambre·M. Magnuson·J. Nordgren·S. Plogmann·M. Neumann
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Abstract

The results of fluorescence measurements of magnetic circular dichroism (MCD) in Mn L_2,L_3 X-ray emission and absorption for Heusler alloys NiMnSb and Co2MnSb are presented. Very intense resonance Mn L_3 emission is found at the Mn 2p_3/2 threshold and is attributed to a peculiarity of the threshold excitation in materials with the half-metallic character of the electronic structure. A theoretical model for the description of resonance scattering of polarized x-rays is suggested.

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M. V. Yablonskikh, A. V. Ezhov, V. I. Grebennikov, Yu. M. Yarmoshenko, E. Z. Kurmaev, S. M. Butorin, L. -C. Duda, C. Sothe, T. Kaambre, M. Magnuson, J. Nordgren, S. Plogmann, M. Neumann. 1999-11-25. Magnetic circular dichroism in X-ray fluorescence of Heusler alloys at threshold excitation. https://doi.org/10.1016/s0038-1098(00)00415-4

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