Spin wave resonance in perpendicularly magnetized synthetic antiferromagnets

被引：0

作者：

Ishibashi M. ^{[1
]}

Shiota Y. ^{[1
]}

Funada S. ^{[1
]}

Moriyama T. ^{[1
]}

Ono T. ^{[1
,2
]}

机构：

[1] Institute for Chemical Research, Kyoto University, Uji, Kyoto

[2] Center for Spintronics Research Network, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka

来源：

Journal of the Magnetics Society of Japan | 2021年 / 45卷 / 02期

关键词：

Antiferromagnetic spin wave; Multilayers; Perpendicularly magnetized synthetic antiferromagnets; Polarized spin waves; Spin wave resonance;

D O I：

10.3379/msjmag.2103R004

中图分类号：

学科分类号：

摘要：

We report antiferromagnetic spin wave resonance in perpendicularly magnetized synthetic antiferromagnets consisting of Co/Ni multilayers and a thin Ru spacer layer. Two resonance modes were observed in the finite range of the out-of-plane bias magnetic field, where two magnetic moments separated by the Ru layer were antiferromagnetically aligned. These two modes show an opposite dependence on the bias magnetic field and correspond to right- and left-handed polarized spin waves. We also theoretically derive the spin wave dispersion for the perpendicularly magnetized synthetic antiferromagnets on the basis of an equation of motion. Our experimental results show good agreement with the theoretical analysis. © 2021, Magnetics Society of Japan. All rights reserved.

引用

页码：25 / 29

页数：4

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