Recovering of superconductivity in exchange fields exceeding Pauli limiting field under spin-dependent quasiparticle distribution

Abstract

We study theoretically the simultaneous influence of spin accumulation potential $e{V}_{\uparrow }-e{V}_{\downarrow }$ and the Zeeman exchange field on singlet superconductivity. It is shown that the pair-breaking effect of the Zeeman field can be fully compensated by creation of the appropriate spin accumulation potential in the superconductor. Moreover, superconductivity can be recovered for exchange fields well exceeding the Pauli limiting field. It is proposed that the effect can be experimentally realized on the basis of voltage biased junction consisting of a thin superconducting film sandwiched between two half metals.

4 pages, 1 figure, published version

References in corpus (5)

• Spin-dependent Cooper Pair Phase and Pure Spin Supercurrents in Strongly Polarized Ferromagnets
• Spin-dependent boundary conditions for isotropic superconducting Green's functions
• Triplet contribution to the Josephson current in the nonequilibrium superconductor/ferromagnet/superconductor junction
• Influence of the spin-dependent quasiparticle distribution on the Josephson current through a ferromagnetic weak link
• Field induced superconducting phase in Superconductor-Normal metal and Superconductor-Superconductor bilayer

Cited by in corpus (13)

• Thermal, electric and spin transport in superconductor/ferromagnetic-insulator structures
• Magnetoelectrics in Disordered Topological Insulator Josephson Junctions
• Electric control of superconducting transition through a spin-orbit coupled interface
• Voltage-induced thin-film superconductivity in high magnetic fields
• Long-range proximity effect for opposite-spin pairs in S/F heterostructures under non-equilibrium quasiparticle distribution
• Thermospin effects in superconducting heterostructures
• High magnetic field superconductivity in a two-band superconductor
• Enhancing of the in-plane FFLO-state critical temperature in heterostructures by the orbital effect of the magnetic field
• Out-of-Equilibrium Spin Transport in Mesoscopic Superconductors
• Spin imbalance in hybrid superconducting structures with spin-active interfaces
• Voltage control of superconducting exchange interaction and anomalous Josephson effect
• Magnonic spin Joule heating and rectification effects
• Long-Range triplet Josephson Current driven by the bias voltage