| Numéro |
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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|---|---|---|
| Page(s) | C2-377 - C2-381 | |
| DOI | https://doi.org/10.1051/jp4/1997025 | |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-377-C2-381
DOI: 10.1051/jp4/1997025
LMCP, URA 9 du CNRS, 4 place Jussieu, 75252 Paris cedex 05, France
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-377-C2-381
DOI: 10.1051/jp4/1997025
Multiple-Scattering Theory of Magnetic EXAFS
Ch. BrouderLMCP, URA 9 du CNRS, 4 place Jussieu, 75252 Paris cedex 05, France
Abstract
This paper discusses various issues of the multiple-scattering theory of magnetic circular dichroism (MCD)
in the x-ray range, especially at the K-edge of 3d transition metals. Using a sernirelativistic expansion of the Dirac Green
function, we show how MCD can be calculated and related to orbital momentum. Moreover, the rigid band model will
be used to relate the high-energy behaviour of MCD to the exchange energy. Finally, we generalise our approach to the
case of orbital polarisation, which was found to be relevant to MCD.
© EDP Sciences 1997