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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