Magnetostatic control of vortex chirality in Co thin film rings

被引：25

作者：

Nam, Chunghee ^{[1
]}

Mascaro, M. D. ^{[1
]}

Ross, C. A. ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 01期

基金：

美国国家科学基金会;

关键词：

cobalt; magnetic domain walls; magnetic thin films; magnetostatics; nanomagnetics; DOMAIN; DYNAMICS; MAGNETS; LOGIC;

D O I：

10.1063/1.3459973

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The vortex chirality in an elliptical Co ring spaced 60 nm from a circular ring has been controlled by magnetostatic interaction. One of the two domain walls (DWs) in the elliptical ring interacts with a neighboring wall in the circular ring, while the other is unaffected by the stray field of the circular ring. The direction of motion of the DWs, and the chirality of the resulting vortex state in the elliptical ring, can be selected by the field direction and history. (C) 2010 American Institute of Physics. [doi:10.1063/1.3459973]

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页数：3

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