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Density-functional theory of multicomponent quantum dots

Karkkainen, K; Koskinen, M; Reimann, Stephanie LU and Manninen, M (2004) In Physical Review B (Condensed Matter and Materials Physics) 70(19).
Abstract
Quantum dots with conduction electrons or holes originating from several bands are considered. We assume the particles are confined in a harmonic potential and assume the electrons (or holes) belonging to different bands to be different types of fermions with isotropic effective masses. The density-functional method with the local density approximation is used. The increased number of internal (Kohn-Sham) states leads to a generalization of Hund's first rule at high densities. At low densitites the formation of Wigner molecules is favored by the increased internal freedom.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
70
issue
19
publisher
American Physical Society
external identifiers
  • wos:000225477800088
  • scopus:12344334914
ISSN
1098-0121
DOI
10.1103/PhysRevB.70.195310
language
English
LU publication?
yes
id
b999efff-8b17-4f6a-bcae-a4a5de2bd8c9 (old id 259504)
date added to LUP
2007-10-23 15:49:04
date last changed
2017-01-01 06:54:09
@article{b999efff-8b17-4f6a-bcae-a4a5de2bd8c9,
  abstract     = {Quantum dots with conduction electrons or holes originating from several bands are considered. We assume the particles are confined in a harmonic potential and assume the electrons (or holes) belonging to different bands to be different types of fermions with isotropic effective masses. The density-functional method with the local density approximation is used. The increased number of internal (Kohn-Sham) states leads to a generalization of Hund's first rule at high densities. At low densitites the formation of Wigner molecules is favored by the increased internal freedom.},
  author       = {Karkkainen, K and Koskinen, M and Reimann, Stephanie and Manninen, M},
  issn         = {1098-0121},
  language     = {eng},
  number       = {19},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Density-functional theory of multicomponent quantum dots},
  url          = {http://dx.doi.org/10.1103/PhysRevB.70.195310},
  volume       = {70},
  year         = {2004},
}