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, André Luiz [UNESP]
dc.contributor.authorCapelle, K.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal do Vale do São Francisco (UNIVASF)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:24:28Z
dc.date.available2014-05-20T15:24:28Z
dc.date.issued2005-03-01
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 v(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.en
dc.description.affiliationUniv São Paulo, Inst Fis, BR-05315970 São Paulo, Brazil
dc.description.affiliationFundação Univ Fed Vale Sao Francisco, Colegiado Engn Prod, BR-56306410 Petrolina, PE, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Ciências, Dept Fis, BR-17015970 Bauru, SP, Brazil
dc.description.affiliationUniv São Paulo, Inst Fis Sao Carlos, Dept Fis & Informat, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciências, Dept Fis, BR-17015970 Bauru, SP, Brazil
dc.format.extent5
dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.71.125130
dc.identifier.citationPhysical Review B. College Pk: Amer Physical Soc, v. 71, n. 12, 5 p., 2005.
dc.identifier.doi10.1103/PhysRevB.71.125130
dc.identifier.fileWOS000228923300056.pdf
dc.identifier.issn1098-0121
dc.identifier.lattes4459191234201599
dc.identifier.urihttp://hdl.handle.net/11449/35067
dc.identifier.wosWOS:000228923300056
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review B
dc.relation.ispartofsjr1,604
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleEffects of nanoscale spatial inhomogeneity in strongly correlated systemsen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmer Physical Soc
unesp.author.lattes4459191234201599[3]
unesp.author.orcid0000-0002-3195-9551[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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Bauru - FC - Faculdade de Ciências