Current-induced spin polarization at a single heterojunction

Silov, A. Yu.; Blajnov, P. A.; Wolter, J. H.; Hey, R.; Ploog, K. H.; Averkiev, N. S.
December 2004
Applied Physics Letters;12/13/2004, Vol. 85 Issue 24, p5929
Academic Journal
We have experimentally achieved spin polarization by a lateral current in a single nonmagnetic semiconductor heterojunction. The effect does not require an applied magnetic field. The current-induced spin orientation can be seen as the inverse of the circular photogalvanic effect (also often referred to as spin photocurrents): the nonequilibrium spin changes its sign as the current reverses.


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