Multiple-scattering theory of magnetic EXAFS

被引：1
|
作者：
Brouder, C
机构：
[1] LMCP, URA 9 du CNRS, 75252 Paris Cedex 05
来源：
JOURNAL DE PHYSIQUE IV | 1997年 / 7卷 / C2期
关键词：
D O I：
10.1051/jp4/1997025
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 semirelativistic 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.
引用
收藏
页码：377 / 381
页数：5
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