Correlation energy in a triplet state of a two-electron spherical quantum dot

Correlation energy in a triplet state of a two-electron spherical quantum dot

Correlation energies in the (1s-1p) triplet state of a two-electron spherical QD with square-well potential confinement are estimated for dots of different radii. The results are presented taking GaAs dot as an example. Our results show that the correlation energies are i) negative in a triplet state in contrast to the singlet state, ii)approaches zero as the dot size approaches infinity, and iii) the "fictitious crossing" of the singlet and triplet state energies at a particular dot size is explained on the basis of Hund's rules.

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Main Authors: Rejo Jeice,A., Navaneethakrishanan,K.
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Física 2009
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332009000500003
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spelling oai:scielo:S0103-973320090005000032009-10-15Correlation energy in a triplet state of a two-electron spherical quantum dotRejo Jeice,A.Navaneethakrishanan,K. Spherical quantum dot Square well confinement Correlation energies Singlet and Triplet states Correlation energies in the (1s-1p) triplet state of a two-electron spherical QD with square-well potential confinement are estimated for dots of different radii. The results are presented taking GaAs dot as an example. Our results show that the correlation energies are i) negative in a triplet state in contrast to the singlet state, ii)approaches zero as the dot size approaches infinity, and iii) the "fictitious crossing" of the singlet and triplet state energies at a particular dot size is explained on the basis of Hund's rules.info:eu-repo/semantics/openAccessSociedade Brasileira de FísicaBrazilian Journal of Physics v.39 n.3 20092009-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332009000500003en10.1590/S0103-97332009000500003
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Rejo Jeice,A.
Navaneethakrishanan,K.
spellingShingle Rejo Jeice,A.
Navaneethakrishanan,K.
Correlation energy in a triplet state of a two-electron spherical quantum dot
author_facet Rejo Jeice,A.
Navaneethakrishanan,K.
author_sort Rejo Jeice,A.
title Correlation energy in a triplet state of a two-electron spherical quantum dot
title_short Correlation energy in a triplet state of a two-electron spherical quantum dot
title_full Correlation energy in a triplet state of a two-electron spherical quantum dot
title_fullStr Correlation energy in a triplet state of a two-electron spherical quantum dot
title_full_unstemmed Correlation energy in a triplet state of a two-electron spherical quantum dot
title_sort correlation energy in a triplet state of a two-electron spherical quantum dot
description Correlation energies in the (1s-1p) triplet state of a two-electron spherical QD with square-well potential confinement are estimated for dots of different radii. The results are presented taking GaAs dot as an example. Our results show that the correlation energies are i) negative in a triplet state in contrast to the singlet state, ii)approaches zero as the dot size approaches infinity, and iii) the "fictitious crossing" of the singlet and triplet state energies at a particular dot size is explained on the basis of Hund's rules.
publisher Sociedade Brasileira de Física
publishDate 2009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332009000500003
work_keys_str_mv AT rejojeicea correlationenergyinatripletstateofatwoelectronsphericalquantumdot
AT navaneethakrishanank correlationenergyinatripletstateofatwoelectronsphericalquantumdot
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