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2004

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/10546

Integer filling facfor phases and isospin in vertical diatomic artificial molecules

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http://dx.doi.org/10.1103/PhysRevB.70.045324

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.

Subject

Spin (Física nuclear), Diagrames de fase, Teoria del funcional de densitat, Estructura electrònica, Semiconductors

Subject (English)

Nuclear spin, Phase diagrams, Density functional theory, Electronic structure, Semiconductors

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

AUSTING, D. G., et al. Integer filling facfor phases and isospin in vertical diatomic artificial molecules. Physical Review B. 2004. Vol. 70, num. 4, pags. 45324-1-45324-8. ISSN 0163-1829. [consulted: 17 of June of 2026]. Available at: https://hdl.handle.net/2445/10546

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