Photon-assisted spin transport in a two-dimensional electron gas
Photon-assisted spin transport in a two-dimensional electron gas
We study spin-dependent transport in a two-dimensional electron gas subjected to an external steplike potential $V(x)$ and irradiated by an electromagnetic field (EF). In the absence of EF, the electronic spectrum splits into spin subbands originating from the ``Rashba'' spin-orbit coupling. We show that the resonant interaction of propagating electrons …