Single-parameter spin-pumping in driven metallic rings with spin-orbit coupling
arXiv:1403.4265 · doi:10.1063/1.4868902
Abstract
We consider the generation of a pure spin-current at zero bias voltage with a single time-dependent potential. To such end we study a device made of a mesoscopic ring connected to electrodes and clarify the interplay between a magnetic flux, spin-orbit coupling and non-adiabatic driving in the production of a spin and electrical current. By using Floquet theory, we show that the generated spin to charge current ratio can be controlled by tuning the spin-orbit coupling.
arXiv comment10 pages, 3 figures
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