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Title: Integer filling facfor phases and isospin in vertical diatomic artificial molecules
Author: Austing, D. G.
Tarucha, S.
Tamura, H.
Muraki, K.
Ancilotto, Francesco
Barranco Gómez, Manuel
Emperador, Agustí
Mayol Sánchez, Ricardo
Pi Pericay, Martí
Keywords: Spin (Física nuclear)
Diagrames de fase
Teoria del funcional de densitat
Estructura electrònica
Nuclear spin
Phase diagrams
Density functional theory
Electronic structure
Issue Date: 2004
Publisher: The American Physical Society
Abstract: Integer filling factor phases of many-electron vertically coupled diatomic artificial quantum dot molecules are investigated for different values of the interdot coupling. The experimental results are analyzed within local-spin density functional theory for which we have determined a simple lateral confining potential law that can be scaled for the different coupling regimes, and Hartree-Fock theory. Maximum density droplets composed of electrons in both bonding and antibonding or just bonding states are revealed, and interesting isospin-flip physics appears for weak interdot coupling when the systematic depopulation of antibonding states leads to changes in isospin.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 2004, vol. 70, núm. 4, p. 45324-1-45324-8
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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