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VOLUME 101 (2015) | ISSUE 6 | PAGE 440
Recovering of superconductivity in S/F bilayers under spin-dependent nonequilibrium quasiparticle distribution
DOI: 10.7868/S0370274X15060107
Abstract
We study theoretically the influence of spin accumulation on superconductivity in a superconductor/ferromagnet bilayer. It is well-known that the superconductivity in Superconductor/Ferromagnet (S/F) bilayers is suppressed by the proximity to a ferromagnet. The spin accumulation by itself is also a depairing factor. But here we show that creation of the spin accumulation on top of effective exchange depairing, caused by the proximity to a ferromagnet, can lead to an opposite result. The superconductivity can be partially recovered by spin-dependent quasiparticle distribution. The systems with realistic parameters are considered and the possible experimental setup is proposed.