Single-parameter spin-pumping in driven metallic rings with spin-orbit coupling

J. P. Ramos; L. E. F. Foa Torres; P. A. Orellana; V. M. Apel

doi:10.1063/1.4868902

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arXiv · 1403.4265

Single-parameter spin-pumping in driven metallic rings with spin-orbit coupling

J. P. Ramos·L. E. F. Foa Torres·P. A. Orellana·V. M. Apel

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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.

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J. P. Ramos, L. E. F. Foa Torres, P. A. Orellana, V. M. Apel. 2014-03-17. Single-parameter spin-pumping in driven metallic rings with spin-orbit coupling. https://doi.org/10.1063/1.4868902

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