Lateral correlation length of magnetization reversal in thin magnetic films

被引：8

作者：

Berger, A ^{[1
]}

Margulies, D

Do, H

Ktena, A

Dahmen, K

机构：

[1] Hitachi Global Storage Technol, San Jose Res Ctr, San Jose, CA 95120 USA

[2] Univ Thessaly, Dept Mech Engn, Volos, Greece

[3] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 10期

关键词：

D O I：

10.1063/1.1854274

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We determine the lateral correlation length L of the magnetization reversal process in thin magnetic films. For this purpose, we have devised an experimental system, which allows tuning of the effective disorder level by means of the local bias field distribution acting upon the magnetic film. This disorder is hereby counteracting the intergranular exchange coupling within the film, which tends to synchronize the reversal process. We observe a sharpening of the switching field distribution upon narrowing the exchange bias field distribution. Quantitative comparisons between these two quantities allow the determination of L without the need for adjustable parameters. (c) 2005 American Institute of Physics.

引用

页数：3

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