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arXiv 0812.4215cond-mat.mtrl-sci
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含时非共线自旋输运中自旋信号的传播

Spin-signal propagation in time-dependent noncollinear spin transport

Yao-Hui Zhu, Burkard Hillebrands, Hans Christian Schneider

摘要:

通过宏观分析,我们证明了含时非共线自旋输运具有波动性质。这导致纯自旋扩散动力学的修改,并允许提取有限的自旋信号传播速度。我们数值研究了旋进频率从GHz到THz范围内的纯自旋电流泵入一个超导层的动力学。

英文摘要:

Using a macroscopic analysis, we show that time-dependent noncollinear spin transport possesses a wavelike character. This leads to modifications of pure spin-diffusion dynamics and allows one to extract a finite spin-signal propagation velocity. We numerically study the dynamics of a pure spin current pumped into a nonmagnetic layer for precession frequencies ranging from GHz to THz.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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