Multiplication of domain walls by eddy currents in nanocrystalline soft magnetic materials

被引：4

作者：

Fratila, L ^{[1
]}

Geoffroy, O ^{[1
]}

Porteseil, JL ^{[1
]}

机构：

[1] Lab Louis Neel, CNRS UJF, F-38042 Grenoble, France

来源：

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

关键词：

anisotropy-random; domain wall dynamics; nanocrystalline materials;

D O I：

10.1016/S0304-8853(01)01253-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multiplication of domain walls by eddy currents under high magnetising frequency in field-annealed nanocrystalline soft materials was investigated. Direct evidence for multiplication was observed at a critical field H-ct. It allowed the determination of the wall energy and the effective anisotropy <K> = 14.3 J/m(3). This result can be well explained by an adaptation of the Herzer formula by considering a contribution of the field-induced anisotropy to the magnetisation process. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：229 / 231

页数：3