Effects of nanoscale spatial inhomogeneity in strongly correlated systems

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dc.contributor.authorSilva, M. F.
dc.contributor.authorLima, N. A.
dc.contributor.authorMalvezzi, A. L. [UNESP]
dc.contributor.authorCapelle, K.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionFundação Universidade Federal do Vale do São Francisco
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T20:00:46Z
dc.date.available2022-04-28T20:00:46Z
dc.date.issued2005-03-15
dc.description.abstractWe calculate ground-state energies and density distributions of Hubbard superlattices characterized by periodic modulations of the on-site interaction and the on-site potential. Both density-matrix renormalization group and density-functional methods are employed and compared. We find that small variations in the on-site potential ν i can simulate, cancel, or even overcompensate effects due to much larger variations in the on-site interaction U i. Our findings highlight the importance of nanoscale spatial inhomogeneity in strongly correlated systems, and call for a reexamination of model calculations assuming spatial homogeneity. ©2005 The American Physical Society.en
dc.description.affiliationInstituto de Física Universidade de São Paulo, Caixa Postal 66318, 05315-970 São Paulo, SP
dc.description.affiliationColegiado de Engenharia de Produção Fundação Universidade Federal do Vale do São Francisco, Caixa Postal 252, 56306-410 Petrolina, PE
dc.description.affiliationDepartamento de Física Faculdade de Ciências Universidade Estadual Paulista, Caixa Postal 473, 17015-970 Bauru, SP
dc.description.affiliationDepartamento de Física e Informática Instituto de Física de São Carlos Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP
dc.description.affiliationUnespDepartamento de Física Faculdade de Ciências Universidade Estadual Paulista, Caixa Postal 473, 17015-970 Bauru, SP
dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.71.125130
dc.identifier.citationPhysical Review B - Condensed Matter and Materials Physics, v. 71, n. 12, 2005.
dc.identifier.doi10.1103/PhysRevB.71.125130
dc.identifier.issn1098-0121
dc.identifier.issn1550-235X
dc.identifier.scopus2-s2.0-20044376196
dc.identifier.urihttp://hdl.handle.net/11449/224559
dc.language.isoeng
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physics
dc.sourceScopus
dc.titleEffects of nanoscale spatial inhomogeneity in strongly correlated systemsen
dc.typeArtigo
unesp.departmentFísica - FCpt

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Bauru - FC - Faculdade de Ciências