Orbital magnetic properties of quantum dots: the role of electron-electron interactions

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dc.creatorda Silva, L. G. G. V. Dias
dc.creatorLewenkopf, Caio H.
dc.creatorStudart, Nelson
dc.date2003-09-22
dc.date.accessioned2026-07-07T12:33:05Z
dc.date.available2026-07-07T12:33:05Z
dc.descriptionWe study the magnetic orbital response of a system of N interacting electrons confined in a two-dimensional geometry and subjected to a perpendicular magnetic field in the finite temperature Hartree-Fock approximation. The electron-electron interaction is modelled by a short-range Yukawa-type potential. We calculate the ground state energy, magnetization, and magnetic susceptibility as a function of the temperature, the potential range, and the magnetic field. We show that the amplitude and period of oscillations in the magnetic susceptibility are strongly affected by the electron-electron interaction as evidenced in experimental results. The zero-field susceptibility displays both paramagnetic and diamagnetic phases as a function of temperature and the number of confined electrons.
dc.description8 pages, 8 figures (revTex4)
dc.identifierhttps://arxiv.org/abs/cond-mat/0309500
dc.identifierhttp://arxiv.org/abs/cond-mat/0309500
dc.identifierPhys. Rev. B 69 075311 (2004).
dc.identifierdoi:10.1103/PhysRevB.69.075311
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217007
dc.subjectMesoscale and Nanoscale Physics
dc.titleOrbital magnetic properties of quantum dots: the role of electron-electron interactions
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