Spin current in spin-triplet superconducting nanostructures

Spin current in spin-triplet superconducting nanostructures
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DOI:
10.1002/pssc.200563107
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发表时间:
2006-05
期刊:
Physica Status Solidi (c)
影响因子:
--
通讯作者:
Y. Asano
Y. Asano
中科院分区:
其他
文献类型:
--
作者:
Y. Asano

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本文从超导的平均场理论出发,导出了超导体中的自旋电流公式。将所得公式应用于介观p波超导环.讨论了零磁场下p波超导环中存在循环自旋流的可能性。自旋流的方向依赖于表征库珀对自旋矢量空间构型的拓扑数。(© 2006 WILEY-VCH Verlag GmbH & Co. KGaA,魏因海姆)
We derive the spin current formula in superconductors on the basis of the mean-field theory of superconductivity. The obtained formula is applied to mesoscopic p -wave superconducting rings. We discuss a possibility of the circulating spin current in p -wave superconducting rings at the zero magnetic field. The direction of spin current depends on topological numbers which characterize the spatial configuration of the spin vector of Cooper pairs. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)