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arXiv 1104.3095cond-mat.mes-hall
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Co/Ru界面的自旋记忆损耗

Spin-memory loss at Co/Ru interfaces

Mazin A. Khasawneh, Carolin Klose, W. P. Pratt,, Norman O. Birge

摘要:

通过测量自旋三重态和自旋单重态库珀对在约瑟夫森结中Co/Ru界面上的透射率,以及利用电流周面巨磁电阻(CPP-GMR)技术,我们确定了自旋记忆损耗参数$δ_{Co/Ru}$。在Co/Ru界面处自旋记忆损失的概率为$(1-exp(-δ_{Co/Ru}))$。从CPP-MR,我们得到的$δ_{Co/Ru} = 0.34^{+0.04}_{-0.02}$是在良好的协议与$δ_{Co/Ru} = 0.35 \pm 0.08$从自旋三重态传输。对于自旋单重态传输,我们有$δ_{Co/Ru} = 0.64 \pm 0.05$,这是从CPP-GMR和自旋三重态传输不同。这种差异的根源尚不清楚。

英文摘要:

We have determined the spin-memory-loss parameter, $δ_{Co/Ru}$, by measuring the transmission of spin-triplet and spin-singlet Cooper pairs across Co/Ru interfaces in Josephson junctions and by Current-Perpendicular-to-Plane Giant Magnetoresistance (CPP-GMR) techniques. The probability of spin-memory loss at the Co/Ru interface is $(1-exp(-δ_{Co/Ru}))$. From the CPP-MR, we obtain $δ_{Co/Ru} = 0.34^{+0.04}_{-0.02}$ that is in good agreement with $δ_{Co/Ru} = 0.35 \pm 0.08$ obtained from spin-triplet transmission. For spin-singlet transmission, we have $δ_{Co/Ru} = 0.64 \pm 0.05$ that is different from that obtained from CPP-GMR and spin-triplet transmission. The source of this difference is not understood.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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