info:eu-repo/semantics/article
Spin dynamics of hot excitons in diluted magnetic semiconductors with spin-orbit interaction
Date
2019-07-16Registration in:
Ungar, F.; Tamborenea, Pablo Ignacio; Axt, V. M.; Spin dynamics of hot excitons in diluted magnetic semiconductors with spin-orbit interaction; American Institute of Physics; Physical Review B; 100; 4; 16-7-2019; 1-8
2469-9969
CONICET Digital
CONICET
Author
Ungar, F.
Tamborenea, Pablo Ignacio
Axt, V. M.
Abstract
We explore the impact of a Rashba-type spin-orbit interaction in the conduction band on the spin dynamics of hot excitons in diluted magnetic semiconductor quantum wells. In materials with strong spin-orbit coupling, we identify parameter regimes where spin-orbit effects greatly accelerate the spin decay and even change the dynamics qualitatively in the form of damped oscillations. Furthermore, we show that the application of a small external magnetic field can be used to either mitigate the influence of spin-orbit coupling or entirely remove its effects for fields above a material-dependent threshold.