Spin currents in a normal two-dimensional electron gas in contact with a spin-orbit interaction region

Details Spin currents in a normal two-dimensional electron gas in contact with a spin-orbit interaction region Spin currents in a normal two-dimensional electron gas in contact with a spin-orbit interaction region

2009-08-14

arxiv.org/abs/0908.2099v1

J. Phys.: Condens. Matter, v. 21, No 37, 375801 (7pp) (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages, 6 figures

Scientific paper

Spin effects in a normal two-dimensional (2D) electron gas in lateral contact with a 2D region with spin-orbit interaction are studied. The peculiarity of this system is the presence of spin-dependent scattering of electrons from the interface. This results in an equilibrium edge spin current and nontrivial spin responses to a particle current. We investigate the spatial distribution of the spin currents and spin density under non-equilibrium conditions caused by a ballistic electron current flowing normal or parallel to the interface. The parallel electron current is found to generate the spin density near the interface and to change the edge spin current. The perpendicular electron current changes the edge spin current proportionally to the electron current and produces a bulk spin current penetrating deep into the normal region. This spin current has two components, one of which is directed normal to the interface and polarized parallel to it, and the second is parallel to the interface and is polarized in the plane perpendicular to the contact line. Both spin currents have a high degree of polarization ($\sim 40-60%$).

Affiliated with

Also associated with

No associations

Rating

Spin currents in a normal two-dimensional electron gas in contact with a spin-orbit interaction region 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 currents in a normal two-dimensional electron gas in contact with a spin-orbit interaction region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin currents in a normal two-dimensional electron gas in contact with a spin-orbit interaction region will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-272683