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OVERVIEW OF INTERLAYER EXCHANGE THEORY

被引：282
作者：
SLONCZEWSKI, JC
机构：
[1] IBM Research Division, Thomas J. Watson Research Center, Yorktown Heights, NY 10598
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 150卷 / 01期
关键词：
D O I：
10.1016/0304-8853(95)00081-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Basic mechanisms of interlayer exchange coupling between two ferromagnets separated by a non-magnetic spacer are surveyed. Simple generic theoretical models yielding closed formulae are treated. First, intrinsic exchange between itinerant ferromagnets is treated in the free-electron band approximation, including corrections to the elementary sinusoidal dependences on metallic-spacer thickness and on angle theta included between the magnetic moments. Properties of metallic and insulating spacers are compared. Then three special mechanisms of non-cos theta coupling are described: (1) fluctuations of spacer thickness, (2) loose spins, and (3) a novel phenomenological coupling through a non-normal spacer, possibly acting in spacers composed of chromium or manganese.
引用
收藏
页码：13 / 24
页数：12
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