Extracting current-induced spins: spin boundary conditions at narrow Hall contacts

Details Extracting current-induced spins: spin boundary conditions at narrow Hall contacts Extracting current-induced spins: spin boundary conditions at narrow Hall contacts

2007-08-02

arxiv.org/abs/0708.0244v1

New J. Phys. 9, 382 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

18 pages, 7 figures, submitted to NJP focus issue on Spintronics

Scientific paper

10.1088/1367-2630/9/10/382

We consider the possibility to extract spins that are generated by an electric current in a two-dimensional electron gas with Rashba-Dresselhaus spin-orbit interaction (R2DEG) in the Hall geometry. To this end, we discuss boundary conditions for the spin accumulations between a spin-orbit coupled region and contact without spin-orbit coupling, i.e. a normal two-dimensional electron gas (2DEG). We demonstrate that in contrast to contacts that extend along the whole sample, a spin accumulation can diffuse into the normal region through finite contacts and detected by e.g. ferromagnets. For an impedance-matched narrow contact the spin accumulation in the 2DEG is equal to the current induced spin accumulation in the bulk of R2DEG up to a geometry-dependent numerical factor.

Affiliated with

Also associated with

No associations

Rating

Extracting current-induced spins: spin boundary conditions at narrow Hall contacts 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 Extracting current-induced spins: spin boundary conditions at narrow Hall contacts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extracting current-induced spins: spin boundary conditions at narrow Hall contacts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-244313