Optically monitored nuclear spin dynamics in individual GaAs quantum dots grown by droplet epitaxy

Details Optically monitored nuclear spin dynamics in individual GaAs quantum dots grown by droplet epitaxy Optically monitored nuclear spin dynamics in individual GaAs quantum dots grown by droplet epitaxy

2008-06-30

arxiv.org/abs/0806.4836v2

Physical Review B 78, 205325 (2008)

Physics

Optics

7 pages, 3 figures

Scientific paper

10.1103/PhysRevB.78.205325

We report optical orientation experiments in individual, strain free GaAs quantum dots in AlGaAs grown by droplet epitaxy. Circularly polarized optical excitation yields strong circular polarization of the resulting photoluminescence at 4K. Optical injection of spin polarized electrons into a dot gives rise to dynamical nuclear polarization that considerably changes the exciton Zeeman splitting (Overhauser shift). We show that the created nuclear polarization is bistable and present a direct measurement of the build-up time of the nuclear polarization in a single GaAs dot in the order of one second.

Affiliated with

Also associated with

No associations

Rating

Optically monitored nuclear spin dynamics in individual GaAs quantum dots grown by droplet epitaxy 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 Optically monitored nuclear spin dynamics in individual GaAs quantum dots grown by droplet epitaxy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optically monitored nuclear spin dynamics in individual GaAs quantum dots grown by droplet epitaxy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-154699