Exciton spin relaxation in single semiconductor quantum dots

Details Exciton spin relaxation in single semiconductor quantum dots Exciton spin relaxation in single semiconductor quantum dots

2003-04-23

arxiv.org/abs/cond-mat/0304509v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

accepted for Phys. Rev. B

Scientific paper

10.1103/PhysRevB.67.205330

We study the relaxation of the exciton spin (longitudinal relaxation time $T_{1}$) in single asymmetrical quantum dots due to an interplay of the short--range exchange interaction and acoustic phonon deformation. The calculated relaxation rates are found to depend strongly on the dot size, magnetic field and temperature. For typical quantum dots and temperatures below 100 K, the zero--magnetic field relaxation times are long compared to the exciton lifetime, yet they are strongly reduced in high magnetic fields. We discuss explicitly quantum dots based on (In,Ga)As and (Cd,Zn)Se semiconductor compounds.

Affiliated with

Also associated with

No associations

Rating

Exciton spin relaxation in single semiconductor quantum dots 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 Exciton spin relaxation in single semiconductor quantum dots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exciton spin relaxation in single semiconductor quantum dots will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-107765