Critical densities for the rpa approach in quasi one dimensional electronic systems

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dc.creatorBorges, J. B.
dc.creatorMachado, Paulo César Miranda
dc.creatorOsorio, Francisco Aparecido Pinto
dc.creatorBorges, Antonio Newton
dc.date.accessioned2023-12-13T14:20:09Z
dc.date.available2023-12-13T14:20:09Z
dc.date.issued2002
dc.description.abstractThe intrasubband pair-correlation function, g(x), for a quasi-one-dimensional electron gas confined in a GaAs–AlxGa1—xAs rectangular quantum wire within the random-phase approximation (RPA) is calculated for several values of the potential barrier height and wire width. We have studied the dependence of the pair-correlation function on the electronic density, and delimited the regions where the RPA approach gives physically acceptable results, i.e. the electronic density values where g(x) possesses positive values for small interparticle separations. The critical density increases with increasing potential barrier height or decreasing wire width.
dc.identifier.citationBORGES, J. B.; MACHADO, P. C. M.; OSÓRIO, F. A. P.; BORGES, A. N. Critical densities for the rpa approach in quasi one dimensional electronic systems. Physica Status Solidi. B: basic solid state physics, Hoboken, v. 232, n.1, p. 76-80, 2002. DOI: 10.1002/1521-3951(200207)232:1<76::AID-PSSB76>3.0.CO;2-N. Disponível em: https://onlinelibrary.wiley.com/doi/abs/10.1002/1521-3951%28200207%29232%3A1%3C76%3A%3AAID-PSSB76%3E3.0.CO%3B2-N. Acesso em: 14 set. 2023.
dc.identifier.doi10.1002/1521-3951(200207)232:1<76::AID-PSSB76>3.0.CO;2-N
dc.identifier.issn0370-1972
dc.identifier.issne-  521-3951
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/abs/10.1002/1521-3951%28200207%29232%3A1%3C76%3A%3AAID-PSSB76%3E3.0.CO%3B2-N
dc.language.isoeng
dc.publisher.countryEstados unidos
dc.publisher.departmentInstituto de Física - IF (RMG)
dc.rightsAcesso Restrito
dc.titleCritical densities for the rpa approach in quasi one dimensional electronic systems
dc.typeArtigo

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