| Téléchargement | - Sera disponible ici le 10 août 2024
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| DOI | Trouver le DOI : https://doi.org/10.1021/acs.nanolett.3c02073 |
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| Auteur | Rechercher : Korkusinski, Marek1Identifiant ORCID : https://orcid.org/0000-0002-2238-336X; Rechercher : Saleem, YasserIdentifiant ORCID : https://orcid.org/0000-0002-9061-6110; Rechercher : Dusko, Amintor; Rechercher : Miravet, Daniel; Rechercher : Hawrylak, Pawel |
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| Affiliation | - Conseil national de recherches du Canada. Technologies de sécurité et de rupture
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| Bailleur de fonds | Rechercher : National Research Council Canada; Rechercher : University of Ottawa; Rechercher : Natural Sciences and Engineering Research Council of Canada |
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| Format | Texte, Article |
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| Sujet | bilayer graphene; gated quantum dot; atomistic tight-binding model; configuration interaction approach; phase diagram |
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| Résumé | We predict the existence of spontaneous spin and valley symmetry-broken states of interacting massive Dirac Fermions in a gated bilayer graphene quantum dot based on the exact diagonalization of the many-body Hamiltonian. The dot is defined by a vertical electric field and lateral gates, and its single-particle (SP) energies, wave functions, and Coulomb matrix elements are computed by using the atomistic tight-binding model. The effect of the Coulomb interaction is measured by the ratio of Coulomb elements to the SP level spacing. As we increase the interaction strength, we find the electrons in a series of spin and valley symmetry-broken phases with increasing valley and spin polarizations. The phase transitions result from the competition of the SP, exchange, and correlation energy scales. A phase diagram for N = 1–6 electrons is mapped out as a function of the Coulomb interaction strength. |
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| Date de publication | 2023-08-10 |
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| Maison d’édition | American Chemical Society |
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| Licence | |
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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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| 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 | 58651d2d-b055-406f-87c9-7350bfda57c0 |
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| Enregistrement créé | 2023-12-08 |
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| Enregistrement modifié | 2023-12-11 |
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