PARALLEL PUMP SPIN-WAVE INSTABILITY THRESHOLD IN THIN FERROMAGNETIC-FILMS

被引：20

作者：

KOSTYLEV, MP ^{[1
]}

KALINIKOS, BA ^{[1
]}

DOTSCH, H ^{[1
]}

机构：

[1] ST PETERSBURG ELECTROTECH UNIV, ST PETERSBURG 197376, RUSSIA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 145卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(94)01612-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A rigorous theory of parallel pump instability threshold of spin waves in ferromagnetic films is developed. Dipole and exchange interactions, the dipole-dipole hybridization of spin wave branches, and the magnetocrystalline and induced anisotropies are taken into account. Expressions for the parallel pump instability threshold are obtained in general form which can be used to calculate the threshold of a single ferromagnetic layer or a multilayered structure containing an arbitrary number of ferromagnetic films. The influences of the dipole-dipole hybridization of parametrically generated spin waves and of their nonreciprocal propagation properties on the threshold are discussed.

引用

页码：93 / 110

页数：18

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