Vortex pinning at individual defects in magnetic nanodisks

被引：42
|
作者：
Rahm, M [1 ]
Biberger, J
Umansky, V
Weiss, D
机构：
[1] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany
[2] Weizmann Inst Sci, Braun Ctr Submicron Res, IL-76100 Rehovot, Israel
来源：
JOURNAL OF APPLIED PHYSICS | 2003年 / 93卷 / 10期
关键词：
D O I：
10.1063/1.1558255
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We studied the interaction between magnetic vortices and artificial point defects by using micro-Hall magnetometry. Disk-shaped Permalloy particles with diameters between 300 and 800 nm and thicknesses from 20 to 60 nm, which contain a single lithographically defined defect, were examined. Magnetization reversal curves were measured for different in-plane directions of the applied field. The data indicate that the magnetic vortex structure can be pinned at the point defect. (C) 2003 American Institute of Physics.
引用
收藏
页码：7429 / 7431
页数：3
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