The spin dynamics in self-organized InAs/GaAs quantum dots have been studied by time-resolved photoluminescence performed under strictly resonant excitation conditions. It is demonstrated that the carrier spins in these nanostructures are totally frozen on the scale of the exciton lifetime.
Exciton states and spin relaxation in CdSe/ZnSe self-organized quantum dots
β Scribed by Klochikhin, A; Reznitsky, A; Permogorov, S; Tsitsishvili, E; Baltz, R v; Kalt, H; Klingshirn, C
- Book ID
- 120474247
- Publisher
- Institute of Physics
- Year
- 2008
- Tongue
- English
- Weight
- 239 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0268-1242
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π SIMILAR VOLUMES
Employing two different growth methods: standard molecular beam epitaxy (MBE) and lowtemperature atomic layer epitaxy (ALE) with subsequent annealing, we have obtained highquality quantum dot structures consisting of CdSe embedded in ZnSe. Single dot emission lines are observed in micro-luminescence
The exciton dynamics in Ga 1-x In x As/GaAs self-organized quantum dots grown on GaAs (111)B substrates are studied by the time-resolved photoluminescence (PL). We have found the intra-dot exciton relaxation by the reduction of the linewidth and peak energy and also by the energy-dependent PL rise t