HIGH-PRECISION LATTICE-PARAMETER MEASUREMENTS ON GALLIUMARSENID BY NEUTRON BACKSCATTERING

被引：0
|
作者：
MULLER, G
BISCHOF, B
ALEFELD, B
机构：
[1] Institut für Festkörperforschung, Forschungszentrum Jülich GmbH
来源：
PHYSICA B-CONDENSED MATTER | 1992年 / 180卷
关键词：
D O I：
10.1016/0921-4526(92)90410-T
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A new four-counter-method was developed for lattice parameter measurements on GaAs-LEC-crystals reaching an accuracy of DELTA-a/a almost-equal-to 10(-7). A linear decrease of DELTA-a/a = 2 x 10(-6) was obtained with increasing stoichiometry in a region ranging from a composition X(As) = 0.49665 (Ga-rich) to X(As) = 0.50155 (As-rich). For the first time crystal instead of melt stoichiometry was investigated.
引用
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页码：609 / 611
页数：3
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