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

页码：7429 / 7431

页数：3

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