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Datta-Das transistor with enhanced spin control

J. Carlos Egues, Guido Burkard, Daniel Loss

cond-mat.mes-hallarXiv:cond-mat/0209682

Abstract

We consider a two-channel spin transistor with weak spin-orbit induced interband coupling. We show that the coherent transfer of carriers between the coupled channels gives rise to an additional spin rotation. We calculate the corresponding spin-resolved current in a Datta-Das geometry and show that a weak interband mixing leads to enhanced spin control.

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