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, 5914. doi:10.1038/s41598-019-42034-y
Published inScientific Reports
© 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. ...
PublisherNature Publishing Group
MetadataShow full item record
Showing items with similar title or keywords.
Bergeret, F. Sebastian; Silaev, Mikhail; Virtanen, Pauli; Heikkilä, Tero (American Physical Society, 2018)This Colloquium discusses the recent progress in understanding the properties of spin-split superconductors under nonequilibrium conditions. Recent experiments and theories demonstrate a rich variety of transport phenomena ...
Rouco, Mikel; Chakraborty, Subrata; Aikebaier, Faluke; Golovach, Vitaly N.; Strambini, Elia; Moodera, Jagadeesh S.; Giazotto, Francesco; Heikkilä, Tero T.; Bergeret, F. Sebastian (American Physical Society, 2019)We investigate transport properties of junctions between two spin-split superconductors linked by a spin-polarized tunneling barrier. The spin-splitting fields in the superconductors (S) are induced by adjacent ferromagnetic ...
Coexistence of superconductivity and spin-splitting fields in superconductor/ferromagnetic insulator bilayers of arbitrary thickness Hijano, Alberto; Ilić, Stefan; Rouco, Mikel; González-Orellana, Carmen; Ilyn, Maxim; Rogero, Celia; Virtanen, P.; Heikkilä, T. T.; Khorshidian, S.; Spies, M.; Ligato, N.; Giazotto, F.; Strambini, E.; Bergeret, F. Sebastián (American Physical Society (APS), 2021)Ferromagnetic insulators (FI) can induce a strong exchange field in an adjacent superconductor (S) via the magnetic proximity effect. This manifests as spin splitting of the BCS density of states of the superconductor, an ...
Virtanen, Pauli; Heikkilä, Tero; Bergeret, F. S. (American Physical Society, 2016)In superconductors spin split by an exchange field, thermal effects are coupled to spin transport. We show how an oscillating electromagnetic field in such systems creates spin imbalance, that can be detected with a ...
Rabinovich, D. S.; Bobkova, I. V.; Bobkov, A. M.; Silaev, M. A. (American Physical Society, 2019)We demonstrate that the hybrid structures consisting of a superconducting layer with an adjacent spin-textured ferromagnet demonstrate the variety of equilibrium magnetoelectric effects originating from coupling between ...