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Berlin 2005 – scientific programme

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MA: Magnetismus

MA 24: Oberfl
ächenmagnetismus

MA 24.1: Talk

Tuesday, March 8, 2005, 10:30–10:45, TU A060

Resonant x-ray emission applied to Mn-based Heusler alloys — •Max Theodor Kuchel1, Jürgen Braun1, Markus Donath1, and Mikhail Yablonskikh21Physikalisches Institut, Westfälische Wilhelms-Universität Münster,Wilhelm-Klemm-Str. 10, 48149 Münster — 2Department of Physics and Engineering Physics, University of Saskatchewan, Canada

We present resonant x-ray emission spectra calculated for a series of different Mn-based Heusler alloys. The fully relativistic calculations are based on the well known Kramers- Heisenberg formula [1] which describes second order optical excitation processes. The initial, intermediate and final states appearing in this formula were derived by use of the tight-binding linear muffin-tin orbitals method [2]. Comparing our theoretical spectra with corresponding experimental data we found a good agreement.

[1] A. Kotani, Rev. Mod. Phys. 73, 203 (2001)

[2] O. K. Andersen and O. Jepsen, Phys. Rev. Lett. 53, 2571 (1984)

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