Supercurrent generation by spin injection in an s-wave superconductor–Rashba metal bilayer

A. G. Mal'shukov

doi:10.1103/PhysRevB.95.064517

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Supercurrent generation by spin injection in an s-wave superconductor–Rashba metal bilayer

A. G. Mal'shukov

DOI 10.1103/PhysRevB.95.064517 · Physical Review B

T1

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Abstract

The spin-galvanic (inverse Edelstein) and inverse spin-Hall effects are calculated for a hybrid system that combines thin superconductor and Rashba metal layers. These effects are produced by a nonequilibrium spin polarization that is injected into the normal metal layer. This polarization gives rise to an electric potential that relaxes within some characteristic length, which is determined by Andreev reflection. Within this length, the dissipative electric current of quasiparticles in the normal layer converts into the supercurrent. This process involves only subgap states, and at low temperature the inelastic electron-phonon interactions are not important. It is discussed how such a hybrid system can be integrated into a SQUID, where it produces an effect similar to a magnetic flux.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown