title: Universal intrinsic spin Hall effect.
abstract: 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.
authors.affiliation: Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA.
authors.forename: Jairo
authors.initials: J
authors.lastname: Sinova
authors.forename: Dimitrie
authors.initials: D
authors.lastname: Culcer
authors.forename: Q
authors.initials: Q
authors.lastname: Niu
authors.forename: N A
authors.initials: NA
authors.lastname: Sinitsyn
authors.forename: T
authors.initials: T
authors.lastname: Jungwirth
authors.forename: A H
authors.initials: AH
authors.lastname: MacDonald