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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 Semiconductors Nuclear spin Phase diagrams Density functional theory Electronic structure Semiconductors |
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 http://dx.doi.org/10.1103/PhysRevB.70.045324 |
It is part of: | Physical Review B, 2004, vol. 70, núm. 4, p. 45324-1-45324-8 |
URI: | http://hdl.handle.net/2445/10546 |
Related resource: | http://dx.doi.org/10.1103/PhysRevB.70.045324 |
ISSN: | 0163-1829 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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