Datta-Das transistor with enhanced spin control
J. Carlos Egues, Guido Burkard, Daniel Loss
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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