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VLSI Design
Volume 8 (1998), Issue 1-4, Pages 443-447
http://dx.doi.org/10.1155/1998/70137

Shell-Filling Effects in Circular Quantum Dots

1Dipartimento di Ingegneria dell' Informazione, Via Diotisalvi, Pisa 2 1-56126, Italy
2Beckman Institute, 405 N Mathews, Urbana 61801, IL, USA

Copyright © 1998 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We investigate the dependence of the capacitive energy associated with a circular quantum dot on the number of electrons in the dot and on the parameters defining the potential confinement. Our results reproduce the shell-filling behavior that has recently been experimentally observed and allow us to estimate the shape of the confinement potential and the dot size of the experiments.