Flux flow spin Hall effect in type-II superconductors with spin-splitting field
Vargunin, A., & Silaev, M. (2019). Flux flow spin Hall effect in type-II superconductors with spin-splitting field. Scientific Reports, 9, Article 5914. https://doi.org/10.1038/s41598-019-42034-y
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Scientific ReportsDate
2019Copyright
© The Authors, 2019.
We predict the very large spin Hall efect in type-II superconductors whose mechanism is drastically
diferent from the previously known ones. We fnd that in the fux-fow regime the spin is transported
by the spin-polarized Abrikosov vortices moving under the action of the Lorenz force in the direction
perpendicular to the applied electric current. Due to the large vortex velocities the spin Hall angle can
be of the order of unity in realistic systems based on the high-feld superconductors, superconductor/
ferromagnet hybrid structures or the recently developed superconductor/ferromagnetic insulator
proximity structures. We propose the realization of high-frequency pure spin current generator based
on the periodic structure of moving vortex lattices. We fnd the patterns of charge imbalance and spin
accumulation generated by moving vortices, which can be used for the electrical detection of individual
vortex motion. The new mechanism of inverse fux-fow spin Hall efect is found based on the driving
force acting on the vortices in the presence of injected spin current which results in the generation of
transverse voltage.
...
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Nature Publishing GroupISSN Search the Publication Forum
2045-2322Keywords
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