Optical and transport properties of heavy fermions: theory compared to experiment

Abstract

Employing a local moment approach to the periodic Anderson model within the framework of dynamical mean-field theory, direct comparison is made between theory and experiment for the dc transport and optical conductivities of paramagnetic heavy fermion and intermediate valence metals. Four materials, exhibiting a diverse range of behaviour in their transport/optics, are analysed in detail: CeB6, YbAl3, CeAl3 and CeCoIn5. Good agreement between theory and experiment is in general found, even quantitatively, and a mutually consistent picture of transport and optics results.

arXiv comment21 pages, 10 figures; Replacement with minor style changes made to avoid postscript file errors

References in corpus (11)

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• Infrared properties of heavy-fermions: evolution from weak to strong hybridizations
• Mott insulators and the doping-induced Mott transition within DMFT: exact results for the one-band Hubbard model
• A local theory for Mott-Anderson localization
• A local moment approach to the degenerate Anderson impurity model
• From mixed valence to the Kondo lattice regime
• Quantum critical Mott transitions in a bilayer Kondo insulator-metal model system
• Fragility of the Kondo insulating gap against disorder: relevance to recent puzzles in topological Kondo insulators
• Electronic transport in AlMn(Si) and AlCuFe quasicrystals: Break-down of the semiclassical model
• Robust surface states and coherence phenomena in magnetically alloyed SmB6
• Emergence of non-Fermi liquid dynamics through non-local correlations in an interacting disordered system
• Mott transitions in the Periodic Anderson Model
• Zero temperature dynamics of the Hubbard model in infinite dimensions: A local moment approach
• Spectral changes in layered $f$-electron systems induced by Kondo hole substitution in the boundary-layer
• Kondo-hole substitution in heavy fermions: dynamics and transport
• Interplay between strong correlations and magnetic field in the symmetric periodic Anderson model
• Interaction effects in mixed-valent Kondo insulators
• Emergent soft-gap Anderson models at quantum criticality in a lattice Hamiltonian within dynamical mean field theory
• Magnetoresistance in paramagnetic heavy fermion metals
• Universal Mott quantum criticality in a modified periodic Anderson model
• Dynamics of valence fluctuations in the extended periodic Anderson model