Platinum thickness dependence of the inverse spin-Hall voltage from spin pumping in a hybrid yttrium iron garnet/platinum system
Platinum thickness dependence of the inverse spin-Hall voltage from spin pumping in a hybrid yttrium iron garnet/platinum system
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DOI：
10.1063/1.4754837
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发表时间：
2012-09-24
影响因子：
4
通讯作者：
van Wees, B. J.
中科院分区：
文献类型：
--
作者：
Castel, V.;Vlietstra, N.;van Wees, B. J.
我们显示的混合钇铁石榴石/铂系统的反自旋霍尔效应从自旋泵，在一个大的频率范围内，不同的射频功率的铂厚度的依赖性的实验观察。从在谐振条件下的电压和正常金属层的电阻的测量，已观察到这些量的比率的强烈增强，这是不符合以前的研究NiFe/铂系统。这种行为的起源不能完全解释的自旋输运模型，我们已经使用，因此仍然不清楚。(C)2012年美国物理学会。[http：//dx.doi.org/10.1063/1.4754837]
We show the experimental observation of the platinum thickness dependence in a hybrid yttrium iron garnet/platinum system of the inverse spin-Hall effect from spin pumping, over a large frequency range and for different radio-frequency powers. From the measurement of the voltage at the resonant condition and the resistance of the normal metal layer, a strong enhancement of the ratio of these quantities has been observed, which is not in agreement with previous studies on the NiFe/platinum system. The origin of this behaviour cannot be fully explained by the spin transport model that we have used and is therefore still unclear. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4754837]