Micromagnetic study of magnetic domain structure and magnetization reversal in amorphous wires with circular anisotropy

被引：5

作者：

Betancourt, I. ^{[1
]}

Hrkac, G. ^{[2
]}

Schrefl, T. ^{[2
,3
]}

机构：

[1] Univ Nacl Autonoma Mexico, Dept Mat Met & Ceram, Inst Invest Mat, Mexico City 04510, DF, Mexico

[2] Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England

[3] St Polten Univ Appl Sci, St Polten, Austria

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2011年 / 323卷 / 09期

关键词：

Magnetic domains; Amorphous wires; Micromagnetism; Circular anisotropy; Magnetization reversal of amorphous wires;

D O I：

10.1016/j.jmmm.2010.11.089

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work we present a detailed numerical investigation on the magnetic domain formation and magnetization reversal mechanism in sub-millimeter amorphous wires with negative magnetostriction by means of micromagnetic calculations. The formation of circular magnetic domains surrounding a multidomain axially oriented central nucleus was observed for the micromagnetic model representing the amorphous wire. The magnetization reversal explained by micromagnetic computations for the M-H curve is described in terms of a combined nucleation-propagation-rotational mechanism after the saturated state. Results are interpreted in terms of the effective magnetic anisotropy. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1134 / 1139

页数：6

共 22 条

[11] ESTIMATION OF THE RADIUS OF THE INNER CORE AND THE ANGLE OF THE EASY AXIS OF ITS MAGNETIZATION FOR AS-PREPARED AMORPHOUS MAGNETOSTRICTIVE WIRE [J].