Datta–Das transistor with enhanced spin control

Egues, J. Carlos; Burkard, Guido; Loss, Daniel
April 2003
Applied Physics Letters;4/21/2003, Vol. 82 Issue 16, p2658
Academic Journal
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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