Universal intrinsic spin Hall effect.
We describe a new effect in semiconductor spintronics that leads to dissipationless spin currents in paramagnetic spin-orbit coupled systems. We argue that in a high-mobility two-dimensional electron system with substantial Rashba spin-orbit coupling, a spin current that flows perpendicular to the charge current is intrinsic. In the usual case where both spin-orbit split bands are occupied, the intrinsic spin-Hall conductivity has a universal value for zero quasiparticle spectral broadening.
Sinova
Jairo
J
Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA.
Culcer
Dimitrie
D
Niu
Q
Q
Sinitsyn
N A
NA
Jungwirth
T
T
MacDonald
A H
AH