Electrical generation of pure spin currents in a two-dimensional electron gas

Details Electrical generation of pure spin currents in a two-dimensional electron gas Electrical generation of pure spin currents in a two-dimensional electron gas

2008-01-25

arxiv.org/abs/0801.4021v4

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevLett.102.116802

Pure spin currents are measured in micron-wide channels of GaAs two-dimensional electron gas (2DEG). Spins are injected and detected using quantum point contacts, which become spin polarized at high magnetic field. High sensitivity to the spin signal is achieved in a nonlocal measurement geometry, which dramatically reduces spurious signals associated with charge currents. Measured spin relaxation lengths range from 30 to 50 microns, much longer than has been reported in GaAs 2DEG's. The technique developed here provides a flexible tool for the study of spin polarization and spin dynamics in mesoscopic structures defined in 2D semiconductor systems.

Affiliated with

Also associated with

No associations

Rating

Electrical generation of pure spin currents in a two-dimensional electron gas 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 Electrical generation of pure spin currents in a two-dimensional electron gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical generation of pure spin currents in a two-dimensional electron gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-111503