Spin transistor action from Onsager reciprocity and SU(2) gauge theory

Details Spin transistor action from Onsager reciprocity and SU(2) gauge theory Spin transistor action from Onsager reciprocity and SU(2) gauge theory

2012-01-02

arxiv.org/abs/1201.0466v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 3 figures, RevTeX, submitted to Physical Review Letters

Scientific paper

We construct a local gauge transformation to show how, in confined systems, a generic, weak nonhomogeneous SU(2) spin-orbit Hamiltonian reduces to two U(1) Hamiltonians for spinless fermions at opposite magnetic fields, to leading order in the spin-orbit strength. Using an Onsager relation, we further show how the resulting spin conductance vanishes in a two-terminal setup, and how it is turned on by either weakly breaking time-reversal symmetry or opening additional transport terminals. We numerically check our theory for mesoscopic cavities as well as Aharonov-Bohm rings.

Affiliated with

Also associated with

No associations

Rating

Spin transistor action from Onsager reciprocity and SU(2) gauge theory 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 transistor action from Onsager reciprocity and SU(2) gauge theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin transistor action from Onsager reciprocity and SU(2) gauge theory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-55519