Charge-transfer metal-insulator transitions in the spin-one-half Falicov-Kimball model

Abstract

The spin-one-half Falicov-Kimball model is solved exactly on an infinite-coordination-number Bethe lattice in the thermodynamic limit. This model is a paradigm for a charge-transfer metal-insulator transition where the occupancy of localized and delocalized electronic orbitals rapidly changes at the metal-insulator transition (rather than the character of the electronic states changing from insulating to metallic as in a Mott-Hubbard transition). The exact solution displays both continuous and discontinuous (first-order) transitions.

22 pages including 4 figures(eps), RevTeX

Cited by in corpus (24)

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• Energetic balance of the superconducting transition across the BCS-Bose E instein crossover in the attractive Hubbard model
• Optical spectral weights and the ferromagnetic transition temperature of CMR manganites: relevance of double-exchange to real materials
• Signature of antiferromagnetic long-range order in the optical spectrum of strongly correlated electron systems
• Optical properties of small polarons from dynamical mean-field theory
• Influence of Hybridization on the Properties of the Spinless Falicov-Kimball Model
• Polaron Crossover and Bipolaronic Metal-Insulator Transition in the Holstein model at half-filling
• Absence of a quantum limit to charge diffusion in bad metals
• Dynamical mean-field theory of a double-exchange model with diagonal disorder
• Dynamical susceptibilities in strong coupling approach
• Formation of charge and spin ordering in strongly correlated electron systems
• Transport functions for hypercubic and Bethe lattices
• Repulsive vs. attractive Hubbard model: transport properties and spin-lattice relaxation rate
• Equivalence of the Falicov-Kimball and Brandt-Mielsch forms for the free energy of the infinite-dimensional Falicov-Kimball model
• Signatures of polaronic charge ordering in optical and dc conductivity using dynamical mean field theory
• Spin dynamics in paramagnetic diluted magnetic semiconductors
• Resonant enhancement of thermoelectric properties by correlated hopping for the Falicov-Kimball model on Bethe lattice
• Ground-state properties of multicomponent Falicov-Kimball-like models I
• Quasiperiodicity and valence fluctuation in the spin-1/2 Falicov-Kimball model
• Nonlocal correlations in the optical conductivity spectra
• Thermoelectric properties of Mott insulator with correlated hopping at microdoping
• Thermodynamics of weakly coupled Falicov-Kimball chains from renormalization-group theory
• Strong effects of thermally induced low-spin-to-high-spin crossover on transport properties of correlated metals