Switching behavior of vortex structures in nanodisks

被引：50

作者：

Pulwey, R ^{[1
]}

Rahm, M ^{[1
]}

Biberger, J ^{[1
]}

Weiss, D ^{[1
]}

机构：

[1] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2001年 / 37卷 / 04期

关键词：

Hall magnetometry; magnetic force microscopy; magnetization reversal of individual particles; nanodisks;

D O I：

10.1109/20.951058

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This work presents an experimental investigation of the switching behavior of single Co- and permalloy (Py) nanodisks employing magnetic force microscopy (MFM) and micro Hall magnetometry. We used both methods to study the magnetization reversal of individual disks with diameters between 200 mn and 2 mum and thicknesses between 5 run and 60 mn with a magnetic vortex phase. It is shown, that the helicity of the vortex (clockwise or counterclockwise) is independent of the direction of the normal component in the center, and vice versa. By an externally applied field it is possible to switch the direction of the central out of plane component selectively.

引用

页码：2076 / 2078

页数：3

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