Theory of X-ray magnetic circular dichroism at L2,3 absorption edges of Ce compounds

被引：8
|
作者：
Kotani, Akio [1 ,2 ]
机构：
[1] High Energy Accelerator Res Org, Inst Mat Struct Sci, Photon Factory, Tsukuba, Ibaraki 305801, Japan
[2] RIKEN, Harima Inst, Sayo, Hyogo 6795148, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2008年 / 77卷 / 01期
关键词：
X-ray absorption; X-ray magnetic circular dichroism; Ce compounds; mixed valence state; single impurity Anderson model;
D O I：
10.1143/JPSJ.77.013706
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Theoretical study is made, with an extended single impurity Anderson model, for the spectra of X-ray magnetic circular dichroism (XMCD) at Ce L-2,L-3 edges of trivalence, weakly mixed valence and strongly mixed valence Ce compounds under external magnetic field. Recent experimental results for CePd3 are well explained. The present theory gives a framework to understand a variety of XMCD behavior of various kinds of ferromagnetic Ce compounds in a unified fashion.
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页数：4
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