| DOI | Trouver le DOI : https://doi.org/10.1143/JJAP.43.2088 |
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| Auteur | Rechercher : Awirothananon, S.1; Rechercher : Sheng, W.1; Rechercher : Babinski, Adam; Rechercher : Studenikin, Sergei1; Rechercher : Raymond, S.1; Rechercher : Sachrajda, Andrew1; Rechercher : Potemski, M.; Rechercher : Fafard, S.; Rechercher : Ortner, G.; Rechercher : Bayer, M. |
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| Affiliation | - Conseil national de recherches du Canada. Institut des sciences des microstructures du CNRC
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| Format | Texte, Article |
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| Résumé | A set of self-assembled InAs/GaAs quantum dot (QD) samples annealed at various temperatures for 30 s was studied using magneto-photoluminescence up to 28 T. Blueshifts increasing with annealing temperature, due to Ga-As interchange at the QD-barrier interface, are correlated with a reduction in inhomogeneous broadening and a reduction in inter-sublevel spacing. These new sample properties allow us to obtain clear crossing patterns closely matched with Fock-Darwin diagrams where the field applied perpendicular to the QD plane lifts the state degeneracies. In the limit that in-plane electron and hole wavefunction extension is the same, the splitting of the p-shell with magnetic field is inversely proportional to the in-plane exciton reduced mass. We use this to obtain the evolution of the latter with intermixing, and compare with predictions of single-particle k*p calculations. |
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| Date de publication | 2004 |
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| Dans | |
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| Numéro NPARC | 12744052 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | e17424b2-19db-4522-9857-bdc6d8d94b03 |
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| Enregistrement créé | 2009-10-27 |
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| Enregistrement modifié | 2020-04-17 |
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