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The S=1 underscreened anderson lattice model for uranium compounds

dc.contributor.authorThomas, Christopherpt_BR
dc.contributor.authorSimões, Acirete Souza da Rosapt_BR
dc.contributor.authorIglesias, Jose Robertopt_BR
dc.contributor.authorLacroix, Claudinept_BR
dc.contributor.authorPerkins, Natalia B.pt_BR
dc.contributor.authorCoqblin, Bernardpt_BR
dc.date.accessioned2015-02-10T02:17:28Zpt_BR
dc.date.issued2011pt_BR
dc.identifier.issn1742-6588pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/109893pt_BR
dc.description.abstractMagnetic properties of uranium and neptunium compounds showing coexistence of the Kondo e®ect and ferromagnetic order are investigated within the degenerate Anderson Lattice Hamiltonian, describing a 5f2 electronic configuration with S = 1 spins. Through the Schrie®er-Wol® transformation, both an exchange Kondo interaction for the S = 1 f-spins and an e®ective f-band term are obtained, allowing to describe the coexistence of Kondo e®ect and ferromagnetic ordering and a weak delocalization of the 5f-electrons. We calculate the Kondo and Curie temperatures and we can account for the pressure dependence of the Curie temperature of UTe.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofJournal of physics : conference series. Bristol. Vol. 273 (2011), 012028, 5 p.pt_BR
dc.rightsOpen Accessen
dc.subjectModelo de Andersonpt_BR
dc.subjectTemperatura de curiept_BR
dc.subjectMateriais ferromagnéticospt_BR
dc.subjectEfeito kondopt_BR
dc.subjectCompostos de urâniopt_BR
dc.titleThe S=1 underscreened anderson lattice model for uranium compoundspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000779480pt_BR
dc.type.originEstrangeiropt_BR


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