Fast switching of small magnetic particles

被引：17

作者：

Suess, D ^{[1
]}

Schrefl, T ^{[1
]}

Scholz, W ^{[1
]}

Fidler, J ^{[1
]}

机构：

[1] Vienna Univ Technol, Inst Appl & Tech Phys, A-1040 Vienna, Austria

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 242卷

基金：

奥地利科学基金会;

关键词：

micromagnetism; Langevin dynamics; fast switching; perpendicular recording;

D O I：

10.1016/S0304-8853(01)01140-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The numerical solution of the Landau-Lifshitz Gilbert equation shows that fast switching is possible at fields well below the anisotropy filed H-a. In this regime the switching time decreases with decreasing external field. Non-uniform demagnetizing fields of irregularly shaped grains or finite temperature do not significantly change the field dependence of the switching time. At finite temperature the switching time decreases. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：426 / 429

页数：4

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