Coulomb interactions in small charge-tunable quantum dots: A simple model

R. J. Warburton; B. T. Miller; C. S. Dürr; C. Bödefeld; K. Karrai; J. P. Kotthaus; G. Medeiros-Ribeiro; P. M. Petroff; S. Huant

doi:10.1103/PhysRevB.58.16221

Coulomb interactions in small charge-tunable quantum dots: A simple model

R. J. Warburton, B. T. Miller, C. S. Dürr, C. Bödefeld, K. Karrai, J. P. Kotthaus, G. Medeiros-Ribeiro, P. M. Petroff, and S. Huant

Phys. Rev. B 58, 16221 – Published 15 December 1998

Abstract

We present perturbation theory results for the Coulomb interactions between electrons, and between electrons and holes, in small quantum dots. The results are used to model both capacitance and interband spectroscopy on charge-tunable, self-assembled dots. At the level of the experimental resolution, currently limited by the inhomogeneous broadening in the dot ensemble, the model calculations reproduce the experimental results extremely well.

Received 9 April 1998

DOI:https://doi.org/10.1103/PhysRevB.58.16221

Authors & Affiliations

R. J. Warburton, B. T. Miller, C. S. Dürr, C. Bödefeld, K. Karrai, and J. P. Kotthaus

Sektion Physik der Ludwig-Maximilians-Universität München, Geschwister-Scholl-Platz 1, 80539 München, Germany

G. Medeiros-Ribeiro and P. M. Petroff

Materials Department and QUEST, University of California–Santa Barbara, Santa Barbara, California 93106

S. Huant

Sektion Physik der Ludwig-Maximilians-Universität München, Geschwister-Scholl-Platz 1, 80539 München, Germany
Laboratoire de Spectrometrie Physique, Université Joseph Fourier de Grenoble and Centre National de la Recherche Scientifique, Boîte Postal 87, F-38402 Saint Martin d’Heres, France

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Vol. 58, Iss. 24 — 15 December 1998

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