2009年4月
Current-Induced Control of Spin-Wave Attenuation
PHYSICAL REVIEW LETTERS
- ,
- ,
- ,
- 巻
- 102
- 号
- 14
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.102.147202
- 出版者・発行元
- AMER PHYSICAL SOC
The current-induced modification of the attenuation of a propagating spin wave in a magnetic nanowire is studied theoretically and numerically. The attenuation length of spin wave can increase when the spin waves and electrons move in the same direction. It is directly affected by the nonadiabaticity of the spin-transfer torque and thus can be used to estimate the nonadiabaticity. When the nonadiabatic spin torque is sufficiently large, the attenuation length becomes negative, resulting in the amplification of spin waves.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevLett.102.147202
- ISSN : 0031-9007
- Web of Science ID : WOS:000265082500063