Scattering of spin current injected in Pd(001)
Scattering of spin current injected in Pd(001)
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DOI：
10.1063/1.1853131
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发表时间：
2005-05-15
影响因子：
3.2
通讯作者：
Brataas, A
中科院分区：
文献类型：
--
作者：
Foros, J;Woltersdorf, G;Brataas, A
用铁磁共振（FMR）方法研究了在GaAs（001）衬底上制备的Pd/Fe（001）单晶薄膜中的自旋抽运。铁磁共振测量表明，Pd（001）覆盖层导致自旋电流的明显衰减，这是由旋进磁化的Fe。厚度大于约10 nm的Pd覆盖层充当完美的自旋阱。有人认为，自旋相干性的损失在Pd是由散射与自旋涨落。(c)2005年美国物理学会。
We have studied spin pumping in Pd/Fe(001) ultrathin crystalline films prepared on GaAs(001) by ferromagnetic resonance (FMR). FMR measurements show that the Pd(001) overlayers lead to an appreciable attenuation of the spin current, which was generated by the precessing magnetization of Fe. Pd overlayers thicker than about 10 nm act as perfect spin sinks. It is argued that the loss of spin coherence in Pd is caused by scattering with spin fluctuations. (c) 2005 American Institute of Physics.