Within the framework of effective-mass approximation, exciton states confined in zinc-blende GaN/AlN quantum dot (QD) are investigated by means of a variational approach, including three-dimensional confinement of the electron and hole in the QD and finite band offsets. Numerical results show that t
Exciton spin dynamics in zinc-blende GaN/AlN quantum dots: Temperature dependence
✍ Scribed by D. Lagarde; A. Balocchi; H. Carrère; P. Renucci; T. Amand; S. Founta; H. Mariette; X. Marie
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 330 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0026-2692
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✦ Synopsis
The exciton spin alignment is measured in an ensemble of self-organized cubic GaN/AlN quantum dots. By picosecond time-resolved photoluminescence experiments, we show that the exciton linear polarization does not decay with time from 20 to 300 K.
📜 SIMILAR VOLUMES
Based on the effective-mass approximation, the effects of the electric field and hydrostatic pressure on exciton states in a cylindrical zinc-blende (ZB) GaN/AlGaN quantum dot (QD) are investigated variationally. Numerical results show that the electric field leads to a remarkable reduction of the g
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