Band-filling and disorder effects in the ordered phase of the Falicov-Kimball model

dc.contributor.author	Carvalho, Rubens Diego Barbosa de	pt_BR
dc.contributor.author	Gusmao, Miguel Angelo Cavalheiro	pt_BR
dc.date.accessioned	2014-11-19T02:15:52Z	pt_BR
dc.date.issued	2014	pt_BR
dc.identifier.issn	1098-0121	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/107121	pt_BR
dc.description.abstract	We investigate the stability of “magnetic” ordering against band-filling changes and Anderson-like disorder in the Falicov-Kimball model, within dynamical mean-field theory (DMFT). The one-particle density of states is obtained by both arithmetic and geometric averages over disorder, allowing us to detect the localization transition. Varying the Coulomb interaction and disorder strength, we construct phase diagrams where we identify metallic and insulating regions, with or without magnetic ordering, and determine how these phases are affected by band filling.	en
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Physical review. B, Condensed matter and materials physics. Woodbury. Vol. 90, no. 8 (Aug. 2014), 085108, 7 p.	pt_BR
dc.rights	Open Access	en
dc.subject	Modelo de Anderson	pt_BR
dc.subject	Densidade de estados eletronicos	pt_BR
dc.subject	Transições magnéticas	pt_BR
dc.subject	Sistemas eletronicos fortemente correlacionados	pt_BR
dc.subject	Transição metal isolante	pt_BR
dc.title	Band-filling and disorder effects in the ordered phase of the Falicov-Kimball model	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	000938437	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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