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arXiv · 1307.3416

Fermi liquid theory of resonant spin pumping

C. P. Moca·A. Alex·A. Shnirman·G. Zarand
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Abstract

We study resonant all-electric adiabatic spin pumping through a quantum dot with two nearby levels by using a Fermi liquid approach in the strongly interacting regime, combined with a projective numerical renormalization group (NRG) theory. Due to spin-orbit coupling, a strong spin pumping resonance emerges at every charging transition, which allows for the transfer of a spin $~ \hbar/2$ through the device in a single pumping cycle. Depending on the precise geometry of the device, controlled pure spin pumping is also possible.

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C. P. Moca, A. Alex, A. Shnirman, G. Zarand. 2013-11-21. Fermi liquid theory of resonant spin pumping. https://doi.org/10.1103/physrevb.88.241404

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