Addition-energy distributions of realistic few-electron quantum dots

E. Räsänen; M. Aichinger

doi:10.1016/j.physe.2006.03.044

Addition-energy distributions of realistic few-electron quantum dots

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

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.

Original language	English
Pages (from-to)	624-627
Number of pages	4
Journal	Physica E: Low-dimensional Systems and Nanostructures
Volume	34
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physe.2006.03.044
Publication status	Published - Aug 2006
Externally published	Yes
Publication type	A1 Journal article-refereed
Event	16th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-16) - Albuquerque, Finland Duration: 10 Jul 2005 → 15 Jul 2005

Keywords

shell structure
disorder
density-functional theory

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10.1016/j.physe.2006.03.044

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title = "Addition-energy distributions of realistic few-electron quantum dots",

abstract = "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.",

keywords = "shell structure, disorder, density-functional theory",

author = "E. R{\"a}s{\"a}nen and M. Aichinger",

year = "2006",

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doi = "10.1016/j.physe.2006.03.044",

language = "English",

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journal = "Physica E: Low-dimensional Systems and Nanostructures",

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note = "16th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-16) ; Conference date: 10-07-2005 Through 15-07-2005",

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TY - JOUR

T1 - Addition-energy distributions of realistic few-electron quantum dots

AU - Räsänen, E.

AU - Aichinger, M.

PY - 2006/8

Y1 - 2006/8

N2 - 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.

AB - 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.

KW - shell structure

KW - disorder

KW - density-functional theory

U2 - 10.1016/j.physe.2006.03.044

DO - 10.1016/j.physe.2006.03.044

M3 - Article

SN - 1386-9477

VL - 34

SP - 624

EP - 627

JO - Physica E: Low-dimensional Systems and Nanostructures

JF - Physica E: Low-dimensional Systems and Nanostructures

IS - 1-2

T2 - 16th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-16)

Y2 - 10 July 2005 through 15 July 2005

ER -

Addition-energy distributions of realistic few-electron quantum dots

Abstract

Keywords

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