网络出版日期: 2016-05-15
基金资助
Supported by Scientific Research fund of University of Chinese Aademy of Sciences(Y25102BN00)
Josephson current in s-wave superconductor/ ferromagnet/p-wave superconductor junctions: the lowest unusual harmonic contribution
Online published: 2016-05-15
Supported by
Supported by Scientific Research fund of University of Chinese Aademy of Sciences(Y25102BN00)
鲍志勇 , 金彪 . s-波/铁磁/p-波超导结中的约瑟夫森电流:最低反常简谐项的贡献[J]. 中国科学院大学学报, 2016 , 33(3) : 339 -346 . DOI: 10.7523/j.issn.2095-6134.2016.03.009
We study the Josephson effect in s-wave superconductor/ferromagnet/p-wave superconductor junctions using the Matsubara Green function method. Three p-wave pairing states with different orbital parts are considered. We focus on the lowest unusual harmonic contribution (∝cosφ) to Josephson current, where φ is a phase difference across the junction. We evaluate the dependence of this unusual term on the strength of magnetization and the width of the central ferromagnet layer. It is confirmed that the 0-π transition also occurs in s-wave superconductor/ferromagnet/p-wave junctions. A possible spintronic application of the present Josephson junction has been discussed.
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