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1998

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/10501

Ground-state self-consistent calculation of quantum dots under magnetic fields: Addition spectrum

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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.

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http://dx.doi.org/10.1103/PhysRevB.58.12970

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Semiconductors, Sistemes hamiltonians, Teoria del funcional de densitat

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Semiconductors, Hamiltonian systems, Density functional theory

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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BARBERÁN FALCÓN, Núria. Ground-state self-consistent calculation of quantum dots under magnetic fields: Addition spectrum. Physical Review B. 1998. Vol. 58, num. 19, pags. 12970-12979. ISSN 0163-1829. [consulted: 11 of October of 2026]. Available at: https://hdl.handle.net/2445/10501

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