Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/76037
Type: Artigo de periódico
Title: A MEAN FIELD APPROACH FOR AN EXTENDED HUBBARD-MODEL WITH CORRELATED HOPPING - INTERPLAY OF ANTIFERROMAGNETISM AND SUPERCONDUCTIVITY
Author: LARA, GA
CABRERA, GG
Abstract: An extended Hubbard model, including Coulomb repulsion and correlated hopping between nearest neighbors, is studied using a mean field approach. Superconducting solutions are tested in the presence of antiferromagnetism, near to and away from half filling. Competition between on-site and intersite repulsions, modulated by correlated hopping, yields a covalent bond configuration with partial intrasite and intersite pairings. In addition, antiferromagnetism induces mixed s- and p-type pairing, and superconductivity is completely suppressed by the saturation of the staggered magnetic moment.
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/0304-8853(92)90895-U
Date Issue: 1992
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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