Anomalous x-ray diffraction study of disorders in epitaxial films of the Heusler alloy, Co2MnGe

被引：13
|
作者：
Collins, Brian A. [1 ]
Zhong, Yuncheng
Chu, Yong S.
He, Liang
Tsui, Frank
机构：
[1] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA
[2] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
来源：
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2007年 / 25卷 / 03期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1116/1.2720857
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The authors report a study of structural and chemical disorders in a ternary combinatorial epitaxial film of Co(x)Mn(y)Gel(1-x-y) in the composition range that includes the Heusler alloy Co2MnGe, using microbeam anomalous x-ray diffraction techniques. The structural and chemical ordering of the alloy has been found to be extremely stable over a large composition range, while elemental site swapping and sublattice vacancies have been identified. A model of anomalous diffraction around the Co and Ge edges is presented and shown to make possible the identification and quantification of these disorders in an epitaxial film. (c) 2007 American Vacuum Society.
引用
收藏
页码：999 / 1003
页数：5
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