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Josephson Current between Triplet and Singlet Superconductors

Yasumasa Hasegawa
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Abstract

The Josephson effect between triplet and singlet superconductors is studied. Josephson current can flow between triplet and singlet superconductors due to the spin-orbit coupling in the spin-triplet superconductor but it is finite only when triplet superconductor has $L_z=-S_z=\pm 1$, where $L_z$ and $S_z$ are the perpendicular components of orbital angular momentum and spin angular momentum of the triplet Cooper pairs, respectively. The recently observed temperature and orientational dependence of the critical current through a Josephson junction between UPt$_3$ and Nb is investigated by considering a non-unitary triplet state.

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Yasumasa Hasegawa. 1998-09-30. Josephson Current between Triplet and Singlet Superconductors. https://doi.org/10.1143/jpsj.67.3699

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