Electrical control of spin relaxation in a quantum dot

Details Electrical control of spin relaxation in a quantum dot Electrical control of spin relaxation in a quantum dot

2007-07-11

arxiv.org/abs/0707.1656v1

Phys. Rev. Lett. 100 046803 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.100.046803

We demonstrate electrical control of the spin relaxation time T_1 between Zeeman split spin states of a single electron in a lateral quantum dot. We find that relaxation is mediated by the spin-orbit interaction, and by manipulating the orbital states of the dot using gate voltages we vary the relaxation rate W= (T_1)^-1 by over an order of magnitude. The dependence of W on orbital confinement agrees with theoretical predictions and from these data we extract the spin-orbit length. We also measure the dependence of W on magnetic field and demonstrate that spin-orbit mediated coupling to phonons is the dominant relaxation mechanism down to 1T, where T_1 exceeds 1s.

Affiliated with

Also associated with

No associations

Rating

Electrical control of spin relaxation in a quantum dot 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 control of spin relaxation in a quantum dot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical control of spin relaxation in a quantum dot will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-435301