Spin pumping efficiency from half metallic Co2MnSi
Spin pumping efficiency from half metallic Co2MnSi
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DOI：
10.1063/1.3556433
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发表时间：
2011-04-01
影响因子：
3.2
通讯作者：
Saitoh, E.
中科院分区：
文献类型：
--
作者：
Chudo, H.;Ando, K.;Saitoh, E.
我们提出使用Heusler合金Co2 MnSi/Pt双层膜的自旋泵浦。通过铁磁共振（FMR）技术产生自旋电流。从Co2 MnSi层注入到Pt层中的纯自旋电流通过逆自旋霍尔效应（ISHE）检测，其将自旋电流转换为电流。我们估计的阻尼常数的Co2 MnSi/Pt双层膜的FMR谱的角度依赖性。利用阻尼常数计算了Co_2MnSi层的自旋泵浦效率。我们发现，在Co2 MnSi/Pt界面的混合电导是相媲美的坡莫合金/Pt界面。(C)2011年美国物理学会。[doi：10.1063/1.3556433]
We present spin pumping using a Heusler alloy Co2MnSi/Pt bilayer film. A spin current is produced by a ferromagnetic resonance (FMR) technique. The pure spin current injected into the Pt layer from the Co2MnSi layer is detected by the inverse spin-Hall effect (ISHE), which converts the spin current into an electric current. We estimated a damping constant of the Co2MnSi/Pt bilayer film from an angular dependence of FMR spectra. Using the damping constant efficiency of spin pumping from the Co2MnSi layer is evaluated. We found that a mixing conductance at the Co2MnSi/Pt interface is comparable to that at a permalloy/Pt interface. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3556433]