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hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBURDIN, Sébastien
hal.structure.identifierThéorie de la Matière Condensée [NEEL - TMC]
dc.contributor.authorLACROIX, Claudine
dc.date.created2013-06-05
dc.date.issued2013
dc.identifier.issn0031-9007
dc.description.abstractEnWe study the low energy states of Kondo alloys as function of the magnetic impurity concentration per site, x, and the conduction electron average site occupation, nc. Using two complementary approaches, the mean-field coherent potential approximation and the strong coupling limit, we identify and characterize two different Fermi liquid regimes. We propose that both regimes are separated by a Lifshitz transition at x = nc. Indeed, we predict a discontinuity of the number of quasiparticles which are enclosed in the Fermi surface. This feature could provide a scenario for the non-Fermi liquid properties that were recently observed in Kondo alloy systems around x = nc.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.subject.enStrongly correlated electron systems and heavy fermions
dc.subject.enMetal-insulator transitions and other electronic transitions
dc.subject.enLocal moment in compounds and alloys
dc.subject.enKondo effect
dc.subject.envalence fluctuations
dc.subject.enheavy fermions
dc.subject.enKondo lattice
dc.subject.enheavy-fermion phenomena
dc.title.enLifshitz transition in Kondo alloys
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevLett.110.226403
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Autre [cond-mat.other]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Electrons fortement corrélés [cond-mat.str-el]
dc.identifier.arxiv1210.5105
bordeaux.journalPhysical Review Letters
bordeaux.page226403
bordeaux.volume110
bordeaux.issue22
bordeaux.peerReviewedoui
hal.identifierhal-00834108
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00834108v1
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