Detection of pure inverse spin-Hall effect induced by spin pumping at various excitation

被引：83
|
作者：
Inoue, H. Y. [1 ]
Harii, K. [1 ]
Ando, K. [1 ]
Sasage, K. [1 ]
Saitoh, E. [1 ]
机构：
[1] Keio Univ, Dept Appl Chem, Yokohama, Kanagawa 2238522, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 2007年 / 102卷 / 08期
关键词：
D O I：
10.1063/1.2799068
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Electric-field generation due to the inverse spin-Hall effect (ISHE) driven by spin pumping was detected and separated experimentally from the extrinsic magnetogalvanic effects in a Ni81Fe19/Pt film. By applying a sample-cavity configuration in which the extrinsic effects are suppressed, the spin pumping using ferromagnetic resonance gives rise to a symmetric spectral shape in the electromotive force spectrum, indicating that the motive force is due entirely to ISHE. This method allows the quantitative analysis of the ISHE and the spin-pumping effect. The microwave-power dependence of the ISHE amplitude is consistent with the prediction of a direct current-spin-pumping scenario. (C) 2007 American Institute of Physics.
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页数：4
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