Spin-Hall current and spin polarization in an electrically biased SNS Josephson junction

Abstract

Periodic in time spin-Hall current and spin polarization induced by a dc electric bias has been calculated in a superconductor-normal 2DEG-superconductor (SNS) Josephson junction. We assumed that the band energies of electrons in the normal system are splitted due to Rashba spin-orbit coupling. The transport parameters have been calculated within the diffusion approximation and using perturbation expansion over a small SN contact transparency. We found out that in contrast to the stationary Josephson effect, the spin-Hall current does not turn to zero. Besides a direct proximity effect caused by Cooper pair's transition into a triplet state, the spin current and polarization are also driven by a periodic electric field associated with the charge imbalance.

9 pages, 7 figures, appendix added

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• Direct electronic measurement of the spin Hall effect
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• High cooperativity coupling of electron-spin ensembles to superconducting cavities
• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• Silicon surface with giant spin-splitting
• Spin-Hall effects in a Josephson contact
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• Anomalous Josephson Hall effect in magnet/triplet superconductor junctions
• AC anomalous Hall effect in topological insulator Josephson junctions
• Enhanced Andreev Reflection in Flat-Band Systems: Wave Packet Dynamics, DC Transport and the Josephson Effect