Chiral Symmetry and Electron Spin Relaxation of Lithium Donors in Silicon

Details Chiral Symmetry and Electron Spin Relaxation of Lithium Donors in Silicon Chiral Symmetry and Electron Spin Relaxation of Lithium Donors in Silicon

2008-07-24

arxiv.org/abs/0807.3928v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

We report theoretical and experimental studies of the longitudinal electron spin and orbital relaxation time of interstitial Li donors in $^{28}$Si. We predict that despite the near-degeneracy of the ground-state manifold the spin relaxation times are extremely long for the temperatures below 0.3 K. This prediction is based on a new finding of the chiral symmetry of the donor states, which presists in the presence of random strains and magnetic fields parallel to one of the cubic axes. Experimentally observed kinetics of magnetization reversal at 2.1 K and 4.5 K are in a very close agreement with the theory. To explain these kinetics we introduced a new mechanism of spin decoherence based on a combination of a small off-site displacement of the Li atom and an umklapp phonon process. Both these factors weakly break chiral symmetry and enable the long-term spin relaxation.

Affiliated with

Also associated with

No associations

Rating

Chiral Symmetry and Electron Spin Relaxation of Lithium Donors in Silicon 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 Chiral Symmetry and Electron Spin Relaxation of Lithium Donors in Silicon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chiral Symmetry and Electron Spin Relaxation of Lithium Donors in Silicon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-677003