Spin relaxation near the metal-insulator transition: dominance of the Dresselhaus spin-orbit coupling

Physics – Condensed Matter – Mesoscale and Nanoscale Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4 pages, 2 figures, submitted to Phys. Rev. Lett

Scientific paper

We identify the Dresselhaus spin-orbit coupling as the source of the dominant spin-relaxation mechanism in the impurity band of doped semiconductors. The Dresselhaus-type (i.e. allowed by bulk-inversion asymmetry) hopping terms are derived and incorporated into a tight-binding model of impurity sites, and they are shown to unexpectedly dominate the spin relaxation, leading to spin-relaxation times in good agreement with experimental values. This conclusion is drawn from two complementary approaches employed to extract the spin-relaxation time from the effective Hamiltonian: an analytical diffusive-evolution calculation and a numerical finite-size scaling.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Spin relaxation near the metal-insulator transition: dominance of the Dresselhaus spin-orbit coupling 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 relaxation near the metal-insulator transition: dominance of the Dresselhaus spin-orbit coupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin relaxation near the metal-insulator transition: dominance of the Dresselhaus spin-orbit coupling will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-174875

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.