Exchange-energy functionals for finite two-dimensional systems

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dc.creatorPittalis, S.
dc.creatorRasanen, E.
dc.creatorHelbig, N.
dc.creatorGross, E. K. U.
dc.date2007-10-03
dc.date2007-12-14
dc.date.accessioned2026-07-07T09:37:24Z
dc.date.available2026-07-07T09:37:24Z
dc.descriptionImplicit and explicit density functionals for the exchange energy in finite two-dimensional systems are developed following the approach of Becke and Roussel [Phys. Rev. A 39, 3761 (1989)]. Excellent agreement for the exchange-hole potentials and exchange energies is found when compared with the exact-exchange reference data for the two-dimensional uniform electron gas and few-electron quantum dots, respectively. Thereby, this work significantly improves the availability of approximate density functionals for dealing with electrons in quasi-two-dimensional structures, which have various applications in semiconductor nanotechnology.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0710.0718
dc.identifierhttp://arxiv.org/abs/0710.0718
dc.identifierPhys. Rev. B 76, 235314 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.235314
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/160447
dc.subjectStrongly Correlated Electrons
dc.titleExchange-energy functionals for finite two-dimensional systems
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