Magnetic anisotropy in arrays of Ni, CoFeB, and Ni/Cu nanowires

被引：86

作者：

Carignan, Louis-Philippe ^{[1
]}

Lacroix, Christian ^{[1
]}

Ouimet, Alexandre ^{[1
]}

Ciureanu, Mariana ^{[1
]}

Yelon, Arthur ^{[1
]}

Menard, David ^{[1
]}

机构：

[1] Ecole Polytechn Montreal, Dept Genie Phys, Regroupement Quebecois Mat Pointe, Montreal, PQ H3C 3A7, Canada

来源：

JOURNAL OF APPLIED PHYSICS | 2007年 / 102卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1063/1.2756522

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An effective field model based on intrawire and interwire dipolar interactions has been developed in order to describe the magnetic anisotropy in arrays of homogeneous and multilayer nanowires. Variable angle ferromagnetic resonance (FMR) and vibrating sample magnetometry (VSM) characterization techniques were used to determine the effective interaction field acting on Ni, CoFeB, and Ni/Cu nanowires. FMR spectra are well described by a rigid magnetization model and VSM data are in rough agreement with a mean longitudinal field model. FMR and VSM values of the effective fields are mutually consistent and in fair agreement with the values calculated with the model. The results show that the anisotropy of our arrays is strongly dominated by the dipolar interactions.

引用

页数：10

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