Spin Injection in Quantum Wells with Spatially Dependent Rashba Interaction

Details Spin Injection in Quantum Wells with Spatially Dependent Rashba Interaction Spin Injection in Quantum Wells with Spatially Dependent Rashba Interaction

2007-08-04

arxiv.org/abs/0708.0597v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 1 figure

Scientific paper

10.1088/1367-2630/9/9/345

We consider Rashba spin-orbit effects on spin transport driven by an electric field in semiconductor quantum wells. We derive spin diffusion equations that are valid when the mean free path and the Rashba spin-orbit interaction vary on length scales larger than the mean free path in the weak spin-orbit coupling limit. From these general diffusion equations, we derive boundary conditions between regions of different spin-orbit couplings. We show that spin injection is feasible when the electric field is perpendicular to the boundary between two regions. When the electric field is parallel to the boundary, spin injection only occurs when the mean free path changes within the boundary, in agreement with the recent work by Tserkovnyak et al. [cond-mat/0610190].

Affiliated with

Also associated with

No associations

Rating

Spin Injection in Quantum Wells with Spatially Dependent Rashba Interaction 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 Spin Injection in Quantum Wells with Spatially Dependent Rashba Interaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin Injection in Quantum Wells with Spatially Dependent Rashba Interaction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-499857