article
Single-parameter spin-pumping in driven metallic rings with spin-orbit coupling
Fecha
2014Registro en:
Autor
Ramos Andrade, Juan Pablo
Foa Torres, Luis Eduardo Francisco
Orellana, P. A.
Apel, Víctor Marcelo
Institución
Resumen
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.