HALF-METALLIC FERROMAGNETS AND THEIR MAGNETO-OPTICAL PROPERTIES.

被引：0
|
作者：
de Groot, R.A.
Mueller, F.M.
van Engen, P.G.
Buschow, K.H.J.
机构：
[1] Faculty of Sciences, Toernooiveld, 6525 ED Nijmegen, Netherlands
[2] Philips Research Laboratories, 5600 JA Eindhoven, Netherlands
来源：
Journal of Applied Physics | 1983年 / 55卷 / 6 pt 2B期
关键词：
MAGNETOOPTICAL EFFECTS - PLATINUM MANGANESE ANTIMONY ALLOYS;
D O I：
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中图分类号：
学科分类号：
摘要：
The authors calculated the electronic structure of PtMnSb in order to explain the very high magnetooptical Kerr effect (over 2. 5 degree at 720 nm at room-temperature) of this compound. It is shown that this behavior is related to the unusual electronic properties of PtMnSb: it is a half-metallic ferromagnet like NiMnSb. The extreme asymmetry in the electronic structure of these compounds - metallic behavior for one spin direction and at the same time semiconducting behavior for the other spin direction - is responsible for the unusual magneto-optical properties.
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页码：2151 / 2154
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