Spin analogue of the controlled Josephson charge current

Sudhansu S Mandal, Soumya P Mukherjee
2006 Journal of Physics: Condensed Matter  
We propose a controlled Josephson spin current across the junction of two non-centrosymmetric superconductors like CePt_3Si. The Josephson spin current arises due to direction dependent tunneling matrix element and different momentum dependent phases of the triplet components of the gap function. Its modulation with the angle \xi between the noncentrosymmetric axes of two superconductors is proportional to \sin \xi. This particular dependence on \xi may find application of the proposed set-up in making a Josephson spin switch.
doi:10.1088/0953-8984/18/47/l02 fatcat:slkb3leyj5f6xojblpzu6v7msq