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arXiv 1609.04526cond-mat.mes-hall
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通往高速纳米磁振子的道路

Route toward high-speed nano-magnonics

B. Divinskiy, V. E. Demidov, S. O. Demokritov, A. B. Rinkevich, S. Urazhdin

摘要:

我们研究实验的可能性,利用脉冲的纯自旋电流,通过非局域自旋注入机制,产生短包的自旋波在纳米磁波导中传播。空间和时间分辨的微焦点布里渊光散射光谱测量表明,由自旋电流的激发导致极快的瞬态响应,使得能够有效地产生持续时间低至几纳秒的短自旋波包。所提出的方法开辟了一条路线,实现高速磁振子系统的传输和处理的信息在纳米尺度上。

英文摘要:

We study experimentally the possibility to utilize pulses of pure spin current, produced via the nonlocal spin injection mechanism, to generate short packets of spin waves propagating in nanoscale magnetic waveguides. The spatially and time-resolved micro-focus Brillouin light scattering spectroscopy measurements demonstrate that the excitation by spin current results in extremely fast transient response, enabling efficient generation of short spin-wave packets with duration down to a few nanoseconds. The proposed method opens a route for the implementation of high-speed magnonic systems for transmission and processing of information on the nanoscale.

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