Datta-Das transistor with enhanced spin control

J. Carlos Egues; Guido Burkard; Daniel Loss

doi:10.1063/1.1564867

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arXiv · cond-mat/0209682

Datta-Das transistor with enhanced spin control

J. Carlos Egues·Guido Burkard·Daniel Loss

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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 \textit{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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J. Carlos Egues, Guido Burkard, Daniel Loss. 2003-04-17. Datta-Das transistor with enhanced spin control. https://doi.org/10.1063/1.1564867

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