We compute the exact lowest energy states and addition spectra for N interacting carriers in semiconductor quantum dots (QDs) embedded in low-dielectric-constant matrices. In particular we focus on the transition between the low dielectric mismatch regime, where single-particle states are confined inside the QD, and the large mismatch regime, where surface localized states may be induced by the dielectric potential outside the QD. In this transition, many-body ground-state reconstructions occur which give rise to strong deviations from the regular shell-filling behaviour dictated by Hand's rules. Our calculated addition spectra indicate that such effects could be monitored in transport experiments.

The effect of dielectric polarization-induced surface states on many-body configurations in a quantum dot / Orlandi, A; Goldoni, Guido; Manghi, Franca; Molinari, Elisa. - In: SEMICONDUCTOR SCIENCE AND TECHNOLOGY. - ISSN 0268-1242. - STAMPA. - 17:(2002), pp. 1302-1311. [10.1088/0268-1242/17/12/316]

The effect of dielectric polarization-induced surface states on many-body configurations in a quantum dot

GOLDONI, Guido;MANGHI, Franca;MOLINARI, Elisa
2002

Abstract

We compute the exact lowest energy states and addition spectra for N interacting carriers in semiconductor quantum dots (QDs) embedded in low-dielectric-constant matrices. In particular we focus on the transition between the low dielectric mismatch regime, where single-particle states are confined inside the QD, and the large mismatch regime, where surface localized states may be induced by the dielectric potential outside the QD. In this transition, many-body ground-state reconstructions occur which give rise to strong deviations from the regular shell-filling behaviour dictated by Hand's rules. Our calculated addition spectra indicate that such effects could be monitored in transport experiments.
2002
17
1302
1311
The effect of dielectric polarization-induced surface states on many-body configurations in a quantum dot / Orlandi, A; Goldoni, Guido; Manghi, Franca; Molinari, Elisa. - In: SEMICONDUCTOR SCIENCE AND TECHNOLOGY. - ISSN 0268-1242. - STAMPA. - 17:(2002), pp. 1302-1311. [10.1088/0268-1242/17/12/316]
Orlandi, A; Goldoni, Guido; Manghi, Franca; Molinari, Elisa
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/5483
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