DOI | Trouver le DOI : https://doi.org/10.1063/1.1994644 |
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Auteur | Rechercher : Evaldsson, M.; Rechercher : Zozoulenko, I.V.; Rechercher : Ciorga, M.1; Rechercher : Zawadzki, P.1; Rechercher : Sachrajda, A.S.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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Conférence | PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27, 26 July 2004 through 30 July 2004, Flagstaff, AZ |
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Résumé | We demonstrate that the magnetoconductance of small lateral quantum dots in the strongly-coupled regime (i.e. when the leads can support one or more propagating modes) shows a pronounced splitting of the conductance peaks and dips which persists over a wide range of magnetic fields (from zero field to the edge-state regime) and is virtually independent of the magnetic field strength. Our numerical analysis of the conductance based on the Hubbard Hamiltonian demonstrates that this is essentially a many-body/spin effect that can be traced to a splitting of degenerate levels in the corresponding closed dot. The above effect in open dots can be regarded as a counterpart of the Coulomb blockade effect in weakly coupled dots, with the difference, however, that the splitting of the peaks originates from the interaction between the electrons of opposite spin. © 2005 American Institute of Physics. |
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Date de publication | 2005 |
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Dans | |
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Série | |
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Langue | anglais |
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Publications évaluées par des pairs | Oui |
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Numéro NPARC | 21274633 |
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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 | 6a9b4913-ef83-4194-bf83-0665b843f9ba |
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Enregistrement créé | 2015-03-18 |
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Enregistrement modifié | 2020-04-07 |
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