Universal Intrinsic Spin-Hall Effect

Details Universal Intrinsic Spin-Hall Effect Universal Intrinsic Spin-Hall Effect

2003-07-27

arxiv.org/abs/cond-mat/0307663v2

Phys. Rev. Lett. 92, 126603 (2004).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, version to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.92.126603

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 spin-Hall conductivity has a universal value.

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