| Téléchargement | - Voir le manuscrit accepté : Single-exciton energy shell structure in InAs/GaAs quantum dots (PDF, 671 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1103/PhysRevB.78.235313 |
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| Auteur | Rechercher : Awirothananon, S.; Rechercher : Raymond, S.1; Rechercher : Studenikin, S.1; Rechercher : Vachon, M.1; Rechercher : Render, W.1; Rechercher : Sachrajda, A.1; Rechercher : Wu, X.1; Rechercher : Babinski, A.; Rechercher : Potemski, M.; Rechercher : Fafard, S.; Rechercher : Cheng, S.J.; Rechercher : Korkusinski, M.1; Rechercher : Hawrylak, P.1 |
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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 | The energy shell structure of a single exciton confined in a self-assembled quantum dot (QD), including excited states, is studied in a regime where the direct Coulomb attraction energy is comparable to the kinetic energy of the carriers. This is achieved via magnetophotoluminescence excitation spectroscopy experiments, where a magnetic field applied perpendicular to the plane of the QD is used to reveal the angular-momentum content of energy shells. The absorption spectrum of the QDs is modeled, and comparison with experiment allows us to relate the observed transitions to interband QD bound-state transitions. The blueshift of the absorption peaks compared to the emission peaks is then interpreted in terms of many-body interactions, and we show that for a highly symmetric situation, the observed energy difference gives a direct measurement of the extra exchange energy gained upon addition of an extra exciton in the QD. © 2008 The American Physical Society. |
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| Date de publication | 2008 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21274614 |
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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 | 118d2cfd-7857-4278-b9f1-e904804bad07 |
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| Enregistrement créé | 2015-03-18 |
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| Enregistrement modifié | 2020-06-04 |
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