We theoretically investigate the effect of a magnetic field perpendicular to the tunneling direction on the ground-state properties of biexcitons in coupled quantum dots. The single-particle states are computed by numerically solving the 3D Scrodinger equation. The biexciton states are obtained by means of a configuration-interaction approach, which fully accounts for the intra- and inter-dot Coulomb correlations. We show that the biexciton ground state undergoes nontrivial transitions as a function of the applied magnetic field, which can be traced back to unexpected carrier localizations. (C) 2004 Elsevier B.V. All rights reserved.
Biexcitons in artificial molecules with in-plane magnetic field / Bellucci, D.; Troiani, Filippo; Goldoni, Guido; Molinari, Elisa. - In: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES. - ISSN 1386-9477. - STAMPA. - 26:1-4(2005), pp. 308-311. [10.1016/j.physe.2004.08.095]
Biexcitons in artificial molecules with in-plane magnetic field
D. BELLUCCI;TROIANI, Filippo;GOLDONI, Guido;MOLINARI, Elisa
2005
Abstract
We theoretically investigate the effect of a magnetic field perpendicular to the tunneling direction on the ground-state properties of biexcitons in coupled quantum dots. The single-particle states are computed by numerically solving the 3D Scrodinger equation. The biexciton states are obtained by means of a configuration-interaction approach, which fully accounts for the intra- and inter-dot Coulomb correlations. We show that the biexciton ground state undergoes nontrivial transitions as a function of the applied magnetic field, which can be traced back to unexpected carrier localizations. (C) 2004 Elsevier B.V. All rights reserved.File | Dimensione | Formato | |
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