POSITRON-ANNIHILATION IN INPB ALLOY SINGLE-CRYSTALS

被引：0
|
作者：
PARKER, KT
STEWART, AT
机构：
来源：
CANADIAN JOURNAL OF PHYSICS | 1991年 / 69卷 / 05期
关键词：
D O I：
10.1139/p91-090
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Electron momenta in Pb and PbIn alloys were measured by the positron annihilation technique. The distributions of momentum observed in single crystals of the specimens showed appreciable anisotropy. A model of the known Fermi surface of Pb near the (111) zone face was adjusted to fit the data. A similar model for the alloys was used to determine k(F) as a function of In concentration in the range 0 < In < 48 at. %. The results are remarkably like free electron theory.
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页码：549 / 552
页数：4
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