Fluctuation-dissipation considerations and damping models for ferromagnetic materials

被引：19

作者：

Safonov, VL ^{[1
]}

Bertram, HN ^{[1
]}

机构：

[1] Univ Calif San Diego, Ctr Magnet Recording Res, La Jolla, CA 92093 USA

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.71.224402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The role of fluctuation-dissipation relations (theorems) for the magnetization dynamics with Landau-Lifshitz- Gilbert and Bloch-Bloembergen damping terms are discussed. We demonstrate that the use of the Callen-Welton fluctuation-dissipation theorem, which was proven for Hamiltonian systems, can give an inconsistent result for magnetic systems with dissipation.

引用

页数：5

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