OSCILLATIONS OF THE EXCHANGE IN MAGNETIC MULTILAYERS AS AN ANALOG OF DEHAAS-VANALPHEN EFFECT

被引：459

作者：

EDWARDS, DM

MATHON, J

MUNIZ, RB

PHAN, MS

机构：

[1] CITY UNIV LONDON,DEPT MATH,LONDON EC1V 0HB,ENGLAND

[2] UNIV FED FLUMINENSE,DEPT FIS,BR-24020 NITEROI,RJ,BRAZIL

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.67.493

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A theory of oscillations in the exchange coupling between two transition-metal ferromagnets separated by a nonmagnetic transition-metal spacer is developed for a one-band model. A close analogy between oscillations in the exchange coupling and de Haas-van Alphen oscillations is established and exploited to show that the period, asymptotic decay, and temperature dependence of the oscillations are determined by properties of the Fermi surface in the spacer layer. The theory describes many features of the oscillations in the exchange coupling observed recently in Co/Ru, Co/Cr, and Fe/Cr superlattices.

引用

页码：493 / 496

页数：4

共 8 条

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