Spin current and inverse spin Hall effect in ferromagnetic metals probed by Y3Fe5O12-based spin pumping
Spin current and inverse spin Hall effect in ferromagnetic metals probed by Y3Fe5O12-based spin pumping
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DOI：
10.1063/1.4878540
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发表时间：
2014-05
影响因子：
4
通讯作者：
Hailong Wang;C. Du;P. Hammel;Fengyuan Yang
中科院分区：
文献类型：
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作者：
Hailong Wang;C. Du;P. Hammel;Fengyuan Yang
利用铁磁（FM）共振自旋抽运，我们观察到了Y3 Fe 5 O 12（YIG）薄膜向FM金属（包括Ni_（81）Fe_（19）（Py））、Fe、Co和Ni）的自旋电流注入，以及FM金属中的反自旋霍尔效应（ISHE）对自旋电流的探测.我们在YIG/Cu/Py三层中获得了6.3 × 1018 m−2的高效自旋混合电导，Py的自旋霍尔角为0.020。Fe、Co和Ni的自旋抽运信号证实了铁磁薄膜中ISHE的机制是反常霍尔效应的逆过程。
Using ferromagnetic (FM) resonance spin pumping, we observe injection of spin currents from Y3Fe5O12 (YIG) films to FM metals, including Ni81Fe19 (Py), Fe, Co, and Ni, and detection of spin currents by inverse spin Hall effect (ISHE) in the FM metals. We obtain a high effective spin mixing conductance of 6.3 × 1018 m−2 in a YIG/Cu/Py trilayer and a spin Hall angle of 0.020 for Py. The spin pumping signals in Fe, Co, and Ni confirm the mechanism of ISHE in FMs is the inverse process of the anomalous Hall effect.