Domain-Wall Motion in Ferromagnetic Nanowires Driven by Arbitrary Time-Dependent Fields: An Exact Result

被引：28

作者：

Goussev, Arseni ^{[1
]}

Robbins, J. M. ^{[1
]}

Slastikov, Valeriy ^{[1
]}

机构：

[1] Univ Bristol, Sch Math, Bristol BS8 1TW, Avon, England

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 14期

基金：

英国工程与自然科学研究理事会;

关键词：

Domain walls;

D O I：

10.1103/PhysRevLett.104.147202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We address the dynamics of magnetic domain walls in ferromagnetic nanowires under the influence of external time-dependent magnetic fields. We report a new exact spatiotemporal solution of the Landau-Lifshitz-Gilbert equation for the case of soft ferromagnetic wires and nanostructures with uniaxial anisotropy. The solution holds for applied fields with arbitrary strength and time dependence. We further extend this solution to applied fields slowly varying in space and to multiple domain walls.

引用

页数：3

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