Effects of spin imbalance on the electric-field driven quantum dissipationless spin current in $p$-doped Semiconductors

Details Effects of spin imbalance on the electric-field driven quantum dissipationless spin current in $p$-doped Semiconductors Effects of spin imbalance on the electric-field driven quantum dissipationless spin current in $p$-doped Semiconductors

2004-01-14

arxiv.org/abs/cond-mat/0401231v2

Phys. Rev. B 70, 235323 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 2 figures, An extended version with detailed calculations To appear in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.70.235323

It was proposed recently by Murakami et al. [Science \textbf{301}, 1348(2003)] that in a large class of $p$-doped semiconductors, an applied electric field can drive a quantum dissipationless spin current in the direction perpendicular to the electric field. In this paper we investigate the effects of spin imbalance on this intrinsic $spin$ Hall effect. We show that in a real sample with boundaries, due to the presence of spin imbalance near the edges of the sample, the spin Hall conductivity is not a constant but a sensitively $position$-$dependent$ quantity, and due to this fact, in order to take the effects of spin imbalance properly into account, a microscopic calculation of both the quantum dissipationless spin Hall current and the spin accumulation on an equal footing is thus required. Based on such a microscopic calculation, a detailed discussion of the effects of spin imbalance on the intrinsic spin Hall effect in thin slabs of $p$-doped semiconductors are presented.

Affiliated with

Also associated with

No associations

Rating

Effects of spin imbalance on the electric-field driven quantum dissipationless spin current in $p$-doped Semiconductors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Effects of spin imbalance on the electric-field driven quantum dissipationless spin current in $p$-doped Semiconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of spin imbalance on the electric-field driven quantum dissipationless spin current in $p$-doped Semiconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-634085