Incoherent non-Fermi liquid scattering in a Kondo lattice

Abstract

One 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].

4 pages, 3 figures (published version)

References in corpus (12)

• Heavy-fermion superconductivity in CeCoIn5 at 2.3K
• Quantum criticality
• Signatures of valence fluctuations in CeCu2Si2 under high pressure
• Coherence scale of the Kondo lattice
• A mechanism for the non-Fermi-liquid behavior in CeCu_{6-x}Au_x
• Unpaired Electrons in the Heavy-Fermion Superconductor CeCoIn_{5}
• Nonvanishing Energy Scales at the Quantum Critical Point of CeCoIn5
• Normal-state Hall Angle and Magnetoresistance in quasi-2D Heavy Fermion CeCoIn_5 near a Quantum Critical Point
• Anomalous quasiparticle transport in the superconducting state of CeCoIn5
• Breakdown of One-Paramater Scaling in Quantum Critical Scenarios for the High-Temperature Copper-oxide Superconductors
• Effects of La substitution on superconducting state of CeCoIn5
• Heat Transport as a Probe of Electron Scattering by Spin Fluctuations: the Case of Antiferromagnetic CeRhIn5

Cited by in corpus (39)

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• Unconventional Superconductivity
• Visualizing heavy fermions emerging in a quantum critical Kondo lattice
• Heavy-electron quantum criticality and single-particle spectroscopy
• Pressure versus concentration tuning of the superconductivity in Ba(Fe(1-x)Cox)2As2
• How Kondo Holes Create Intense Nanoscale Heavy-Fermion Hybridization Disorder
• Electronic inhomogeneity in a Kondo lattice
• Electronic tuning and uniform superconductivity in CeCoIn5
• Universal pair-breaking in transition metal-substituted iron-pnictide superconductors
• Composition and field tuned magnetism and superconductivity in Nd1-xCexCoIn5
• Local structure and site occupancy of Cd and Hg substitutions in CeTIn5 (T=Co, Rh, Ir)
• Non-Fermi liquid behavior with and without quantum criticality in Ce(1-x)Yb(x)CoIn(5)
• Yb Valence Change in (Ce,Yb)CoIn5 from spectroscopy and bulk properties
• Composite pairing in a mixed valent two channel Anderson model
• Crystal growth and annealing study of fragile, non-bulk superconductivity in YFe${}_2$Ge${}_2$
• Two types of superconducting domes in unconventional superconductors
• Strong suppression of superconductivity by divalent Ytterbium Kondo-holes in CeCoIn_5
• In Situ STM Observation of Nonmagnetic Impurity Effect in MBE-grown CeCoIn${}_5$ Films
• Anomalous metamagnetism in the low carrier density Kondo lattice YbRh3Si7
• Resolution of the discrepancy between the variation of the physical properties of Ce1-xYbxCoIn5 single crystals and thin films with Yb composition
• Fermi surface evolution through a heavy fermion superconductor-to-antiferromagnet transition: de Haas-van Alphen effect in Cd-substituted CeCoIn${}_5$
• CeIr${}_3$Ge${}_7$: a local moment antiferromagnetic metal with extremely low ordering temperature
• Apparent Violation of the Wiedemann-Franz law near a magnetic field tuned metal-antiferromagnetic quantum critical point
• From local moment to mixed-valence regime in Ce(1-x)Yb(x)CoIn5 alloys
• Ferromagnetic ordering along the hard axis in the Kondo lattice YbIr3Ge7
• Upper critical field of CeCoIn5
• Interwoven atypical quantum states in CeLiBi${}_2$
• Correlated disorder in Kondo lattice
• Non-Fermi liquid behaviour from dynamical effects of impurity scattering in correlated Fermi liquids
• Universal Heat Conduction in Ce1-xYbxCoIn5: Evidence for Robust Nodal d-wave Superconducting Gap
• Tuning the Kondo effect in Yb(Fe${}_{1-x}$Co${}_x$)${}_2$Zn${}_{20}$
• Magnetic and charge transport properties of the Na-based Os oxide pyrochlore
• Superconductivity and non-Fermi-liquid behavior in the heavy-fermion compound CeCo${}_{1-x}$Ni${}_x$In${}_5$
• Spins, electrons and broken symmetries: realizations of two channel Kondo physics
• Probing a Bose Metal via Electrons: Inescapable non-Fermi liquid scattering and pseudogap physics
• Quantum criticality and superconducting pairing in Ce(1-x)Yb(x)CoIn5 alloys
• Pressure studies of the quantum critical alloy Ce(0.93)Yb(0.07)CoIn5
• Equivalence of magnetic field and particle dilution in the strange metal state of CeCoIn${}_5$
• Emergent magnetism, heavy electrons and pressure-induced reentrant superconductivity in the iron substituted 4d transition-metal sulfides