Spin Hall noise
Spin Hall noise
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DOI：
10.1103/physrevb.90.214419
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发表时间：
2014-09
影响因子：
3.7
通讯作者：
A. Kamra;Friedrich P. Witek;S. Meyer;H. Huebl;S. Geprags;R. Gross;G. Bauer;S. Goennenwein
中科院分区：
文献类型：
--
作者：
A. Kamra;Friedrich P. Witek;S. Meyer;H. Huebl;S. Geprags;R. Gross;G. Bauer;S. Goennenwein
我们通过逆自旋霍尔效应 (ISHE) 介导的电压噪声测量沉积在钇铁石榴石上的铂薄膜中纯自旋电流的低频热波动，作为角度 θ 的函数。磁化方向和传输方向之间。该结果与最近发现的自旋霍尔磁阻（SMR）的涨落耗散定理一致。我们提出了微观描述？电压噪声对自旋电流波动和 ISHE 的依赖性。
We measure the low-frequency thermal fluctuations of pure spin current in a platinum film deposited on yttrium iron garnet via the inverse spin Hall effect (ISHE)-mediated voltage noise as a function of the angle ? between the magnetization and the transport direction. The results are consistent with the fluctuation-dissipation theorem in terms of the recently discovered spin Hall magnetoresistance (SMR). We present a microscopic description of the ? dependence of the voltage noise in terms of spin-current fluctuations and ISHE.