Soft X-ray magnetic circular dichroism of Heusler-type alloy Co2MnGe

被引：29
|
作者：
Miyamoto, K
Iori, K
Kimura, A
Xie, T
Taniguchi, M
Qiao, S
Tsuchiya, K
机构：
[1] Hiroshima Univ, Grad Sch Sci, Higashihiroshima 7398526, Japan
[2] Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Higashihiroshima 7398526, Japan
[3] Toyohashi Univ Technol, Dept Prod Syst Engn, Toyohashi, Aichi 4418580, Japan
来源：
SOLID STATE COMMUNICATIONS | 2003年 / 128卷 / 05期
关键词：
half metallic ferromagnets; orbital magnetic moment; spin-orbit interaction; soft X-ray absorption spectroscopy (XAS); soft X-ray magnetic circular dichroism (XMCD);
D O I：
10.1016/j.ssc.2003.08.007
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Co and Mn 2p core absorption (XAS) and X-ray magnetic circular dichroism (XMCD) spectra have been measured for the ferromagnetic ternary alloy Co2MnGe. The observed Co 2p XAS spectrum can be understood on the basis of the unoccupied Co 3d partial density of states, whereas the overall features of the Mn 2p XAS and XMCD spectra have been partly reproduced by the Mn 2p(5)3d(6) final state multiplets. We have found that the orbital polarization of the Co 3d and even the Mn 3d states are recognizable, which suggests that a spin-orbit coupling should be taken into account in the energy band structure in order to reproduce the half metallic nature of this alloy. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：163 / 166
页数：4
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