Current-induced spin torque resonance of magnetic insulators affected by field-like spin-orbit torques and out-of-plane magnetizations

被引：26

作者：

Chiba, Takahiro ^{[1
]}

Schreier, Michael ^{[2
]}

Bauer, Gerrit E. W. ^{[1
,3
,4
]}

Takahashi, Saburo ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[2] Bayer Akad Wissensch, Walther Meissner Inst, D-85748 Garching, Germany

[3] Tohoku Univ, WPI AIMR, Sendai, Miyagi 9808577, Japan

[4] Delft Univ Technol, Kavli Inst NanoSci, NL-2628 CJ Delft, Netherlands

来源：

JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 17期

关键词：

Quantum theory - Iron compounds - Ferromagnetic resonance - Torque;

D O I：

10.1063/1.4913632

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The spin-torque ferromagnetic resonance (ST-FMR) in a bilayer system consisting of a magnetic insulator such as Y3Fe5O12 and a normal metal with spin-orbit interaction such as Pt is addressed theoretically. We model the ST-FMR for all magnetization directions and in the presence of field-like spin-orbit torques based on the drift-diffusion spin model and quantum mechanical boundary conditions. ST-FMR experiments may expose crucial information about the spin-orbit coupling between currents and magnetization in the bilayers. (C) 2015 AIP Publishing LLC.

引用

页数：4

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