Intrinsic nonlinear ferromagnetic relaxation in thin metallic films

被引：72

作者：

Dobin, AY ^{[1
]}

Victora, RH

机构：

[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[2] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.90.167203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose an intrinsic mechanism for ferromagnetic relaxation in thin films that can dominate competing linear mechanisms even for rapidly relaxing metals. In particular, we use an analytic theory of four-magnon scattering to demonstrate rapid decay for technologically important systems involving high moment materials subject to large rotations. A micromagnetic simulation is used to verify the results.

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