Balancing interlayer dipolar interactions in multilevel patterned media with out-of-plane magnetic anisotropy

被引：19

作者：

Baltz, V. ^{[1
]}

Rodmacq, B. ^{[1
]}

Bollero, A. ^{[1
]}

Ferre, J. ^{[2
]}

Landis, S. ^{[3
]}

Dieny, B. ^{[1
]}

机构：

[1] CEA INAC, SPINTEC, CNRS, URA CEA 2512, F-38054 Grenoble, France

[2] CNRS, UMR 8502, Phys Solides Lab, F-91405 Orsay, France

[3] CEA LETI, F-38054 Grenoble, France

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 05期

关键词：

cobalt; coercive force; magnetic anisotropy; magnetic multilayers; magnetisation reversal; nanostructured materials; platinum; RKKY interaction; ruthenium; MULTILAYERS; ARRAYS;

D O I：

10.1063/1.3078523

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanostructures consisting of a stack of two magnetic multilayers with out-of-plane anisotropy and distinct coercivities hold great promises in spintronics devices. Yet their miniaturization leads to interlayer dipolar coupling, which results in detrimental asymmetrical behaviors of magnetization reversal or even in the loss of intermediate antiparallel configuration. In this letter, we take advantage of Ruderman-Kittel-Kasuya-Yosida interactions in order to compensate for this coupling and restore symmetry. The study has been performed on an array of square dots of 200 nm lateral size, each dot consisting of two [Co/Pt] multilayers antiferromagnetically coupled through a thin Ru spacer.

引用

页数：3

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