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dc.contributor.authorIglesias, Jose Robertopt_BR
dc.contributor.authorLacroix, Claudinept_BR
dc.contributor.authorCoqblin, Bernardpt_BR
dc.date.accessioned2014-10-04T02:13:25Zpt_BR
dc.date.issued1997pt_BR
dc.identifier.issn0163-1829pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/104171pt_BR
dc.description.abstractThe Kondo lattice model including nearest-neighbor magnetic exchange interactions is studied here in a mean-field approximation describing both the Kondo state and the intersite magnetic correlations. In the case of antiferromagnetic correlations, our model yields a decrease of the Kondo temperature compared to the one-impurity value, giving, therefore, a ‘‘revisited’’ version of the Doniach diagram with a rather flat Kondo temperature in the nonmagnetic case, as observed in several cerium compounds. Our model shows also that short-range magnetic correlations can appear at a temperature clearly larger than the Kondo temperature, as observed in compounds such as CeCu₆ or CeRu₂Si₂.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. B, Condensed matter. New York. Vol. 56, no. 18 (Nov. 1997), p. 11820-11826pt_BR
dc.rightsOpen Accessen
dc.subjectFísica da matéria condensadapt_BR
dc.subjectEfeito kondopt_BR
dc.subjectAntiferromagnetismopt_BR
dc.subjectDensidade de estados eletronicospt_BR
dc.titleRevisited doniach diagram : influence of short-range antiferromagnetic correlations in the Kondo latticept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000152530pt_BR
dc.type.originEstrangeiropt_BR


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