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Rashba spin-orbit-interaction-based quantum pump in graphene (Articolo in rivista)

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Rashba spin-orbit-interaction-based quantum pump in graphene (Articolo in rivista) (literal)

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Dario Bercioux,1 Daniel F. Urban,2 Francesco Romeo,3 and Roberta Citro3 (2012)
Rashba spin-orbit-interaction-based quantum pump in graphene
in Applied physics letters
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Dario Bercioux,1 Daniel F. Urban,2 Francesco Romeo,3 and Roberta Citro3 (literal)

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1Freiburg Institute for Advanced Studies, Albert-Ludwigs-Universit?at, D-79104 Freiburg, Germany 2Physikalisches Institut, Albert-Ludwigs-Universit?at, D-79104 Freiburg, Germany 3Dipartimento di Fisica \E. R. Caianiello\" and Spin-CNR, Universit?a degli Studi di Salerno, I-84084 Fisciano (Sa), Italy (literal)

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Abstract

We present a proposal for an adiabatic quantum pump based on a graphene monolayer patterned by electrostatic gates and operated in the low-energy Dirac regime. The setup under investigation works in the presence of inhomogeneous spin-orbit interactions of intrinsic- and Rashba-type and allows to generate spin polarized coherent currents. A local spin polarized current is induced by the pumping mechanism assisted by the spin-double refraction phenomenon. (literal)

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