Direct detection of magnon spin transport by the inverse spin Hall effect
Direct detection of magnon spin transport by the inverse spin Hall effect
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DOI：
10.1063/1.3689787
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发表时间：
2012-02-20
影响因子：
4
通讯作者：
Hillebrands, B.
中科院分区：
文献类型：
--
作者：
Chumak, A. V.;Serga, A. A.;Hillebrands, B.
利用空间分离的感应自旋波源和逆自旋霍尔效应探测器，在时间分辨实验中，将行波磁振子转换成电子携带的自旋电流.自旋波包在钇铁石榴石波导中由微波信号激发，并由附加的铂层以延迟ISHE电压脉冲的形式检测到。由于自旋波群速度有限，出现了延迟，证明了磁振子自旋输运。实验表明，利用自旋波在自旋电子器件和电路中进行宏观距离的信息传输。(C)2012年美国物理学会。[http：//dx.doi.org/10.1063/1.3689787]
Conversion of traveling magnons into an electron carried spin current is demonstrated in a time resolved experiment using a spatially separated inductive spin-wave source and an inverse spin Hall effect (ISHE) detector. A spin-wave packet is excited in a yttrium-iron garnet waveguide by a microwave signal and is detected 3mm apart by an attached platinum layer as a delayed ISHE voltage pulse. The delay appears due to the finite spin-wave group velocity and proves the magnon spin transport. The experiment suggests the utilization of spin waves for the information transfer over macroscopic distances in spintronic devices and circuits. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3689787]