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Addition-energy distributions of realistic few-electron quantum dots

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Original languageEnglish
Pages (from-to)624-627
Number of pages4
JournalPhysica E: Low-dimensional Systems and Nanostructures
Issue number1-2
Publication statusPublished - Aug 2006
Externally publishedYes
Publication typeA1 Journal article-refereed
Event16th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-16) - Albuquerque, Finland
Duration: 10 Jul 200515 Jul 2005


Using an effective density-functional approach, we study statistical properties of addition energies in two-dimensional quantum dots (QDs) consisting of 1-20 electrons. We apply a realistic model for impurities in the layer material of the QD. The spin-dependent addition-energy distributions are computed from a thousand configurations for different impurity densities. We find that the spin variation and the electron-electron interactions considerably affect the shape of the distribution. (c) 2006 Elsevier B.V. All rights reserved.


  • shell structure, disorder, density-functional theory