Incoherent non-Fermi liquid scattering in a Kondo lattice

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dc.creatorPaglione, Johnpierre
dc.creatorSayles, T. A.
dc.creatorHo, P. -C.
dc.creatorJeffries, J. R.
dc.creatorMaple, M. B.
dc.date2007-05-17
dc.date2008-03-18
dc.date.accessioned2026-07-07T09:26:57Z
dc.date.available2026-07-07T09:26:57Z
dc.descriptionOne of the most notorious non-Fermi liquid properties of both archetypal heavy-fermion systems [1-4] and the high-Tc copper oxide superconductors [5] is an electrical resistivity that evolves linearly with temperature, T. In the heavy-fermion superconductor CeCoIn5 [5], this linear behaviour was one of the first indications of the presence of a zero-temperature instability, or quantum critical point. Here, we report the observation of a unique control parameter of T-linear scattering in CeCoIn5, found through systematic chemical substitutions of both magnetic and non-magnetic rare-earth, R, ions into the Ce sub-lattice. We find that the evolution of inelastic scattering in Ce1-xRxCoIn5 is strongly dependent on the f-electron configuration of the R ion, whereas two other key properties -- Cooper-pair breaking and Kondo-lattice coherence -- are not. Thus, T-linear resistivity in CeCoIn5 is intimately related to the nature of incoherent scattering centers in the Kondo lattice, which provides insight into the anomalous scattering rate synonymous with quantum criticality [7].
dc.description4 pages, 3 figures (published version)
dc.identifierhttps://arxiv.org/abs/0705.2592
dc.identifierhttp://arxiv.org/abs/0705.2592
dc.identifierNature Physics 3, 703 (2007)
dc.identifierdoi:10.1038/nphys711
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/156935
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleIncoherent non-Fermi liquid scattering in a Kondo lattice
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