Coherent QENS for the investigation of self-diffusion in intermetallic alloys

被引：3
|
作者：
Kaisermayr, M
Sepiol, B
Vogl, G
机构：
[1] Univ Vienna, Inst Mat Phys, A-1090 Vienna, Austria
[2] Hahn Meitner Inst, D-14109 Berlin, Germany
来源：
PHYSICA B | 2001年 / 301卷 / 1-2期
关键词：
diffussion; intermetallics; disorder; coherent neutron scattering;
D O I：
10.1016/S0921-4526(01)00521-X
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Up to now, self-diffusion in intermetallic alloys has been successfully studied in various compounds containing strong incoherent scatterers, namely Ni and Co, by means of QENS. The range of accessible compounds could be significantly enlarged by using coherent scattering. We, therefore, derive the coherent scattering function for self-diffusion via vacancies in intermetallic alloys and consider how coherent scattering can be used for diffusion studies as well as how coherent background in incoherent experiments on intermetallic alloys can be taken into account. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：115 / 118
页数：4
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