Micromagnetics of the dynamic susceptibility for coupled Permalloy stripes

被引：36
作者：
Gérardin, O [1 ]
Ben Youssef, J
Le Gall, H
Vukadinovic, N
Jacquart, PM
Donahue, MJ
机构：
[1] Univ Brest, CNRS, UMR 6135, Lab Magnetisme Bretagne, F-29285 Brest, France
[2] Dassault Aviat, F-92552 St Cloud, France
[3] NIST, Gaithersburg, MD 20899 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2000年 / 88卷 / 10期
关键词：
D O I：
10.1063/1.1320011
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The dynamic susceptibility of arrays of narrow Permalloy stripes (9 mm x several mum x 200 nm) has been investigated using a single-coil broadband susceptibility spectrometer. Disagreement is observed between experimental results and the macroscopic Landau-Lifshitz model. This model does not take into account the dipolar interaction between magnetic stripes. We have performed micromagnetic calculations that include these dipolar interactions, and have found the resulting frequency dependence of the dynamic susceptibility in the linear regime to be in good agreement with our experimental data. (C) 2000 American Institute of Physics. [S0021-8979(00)03723-3].
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页码：5899 / 5903
页数：5
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