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Title: Ground-state self-consistent calculation of quantum dots under magnetic fields: Addition spectrum
Author: Barberán Falcón, Núria
Keywords: Semiconductors
Sistemes hamiltonians
Teoria del funcional de densitat
Hamiltonian systems
Density functional theory
Issue Date: 1998
Publisher: The American Physical Society
Abstract: A density-functional self-consistent calculation of the ground-state electronic density of quantum dots under an arbitrary magnetic field is performed. We consider a parabolic lateral confining potential. The addition energy, E(N+1)-E(N), where N is the number of electrons, is compared with experimental data and the different contributions to the energy are analyzed. The Hamiltonian is modeled by a density functional, which includes the exchange and correlation interactions and the local formation of Landau levels for different equilibrium spin populations. We obtain an analytical expression for the critical density under which spontaneous polarization, induced by the exchange interaction, takes place.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 1998, vol. 58, núm. 19, p. 12970-12979
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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