Author/Authors :
Sherman، نويسنده , , E.Ya. and Najmaie، نويسنده , , Ali and van Driel، نويسنده , , H.M. and Smirl، نويسنده , , Arthur L. and Sipe، نويسنده , , J.E.، نويسنده ,
Abstract :
We consider the possibility of ultrafast extrinsic spin-Hall currents, generated by skew scattering following the optical injection of charge or pure spin currents. We propose a phenomenological model for this effect in quantum well structures. An injected charge current leads to a spin-Hall-induced pure spin current, and an injected pure spin current leads to a spin-Hall-induced charge current. The resulting spin or charge accumulation can be measured optically.
