Field induced domain wall collisions in thin magnetic nanowires

被引：68

作者：

Kunz, Andrew ^{[1
]}

机构：

[1] Marquette Univ, Dept Phys, Milwaukee, WI 53233 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 13期

基金：

美国国家科学基金会;

关键词：

magnetic domain walls; magnetic thin films; nanowires; MESOSCOPIC RING MAGNETS; MOTION;

D O I：

10.1063/1.3112577

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In a two-dimensional magnetic nanowire, it is possible to engineer collisions between two domain walls put into motion by an externally applied field. We show that the topological defects that define the domain wall can be controlled to allow for both domain wall annihilation and preservation during the collisions as long as the wire remains thin. The preservation process can be used to release pinned domain walls from notches with small applied fields.

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页数：3

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