Non-local correlations in metals close to a charge order insulator transition

Abstract

The charge ordering transition induced by the nearest-neighbor Coulomb repulsion, V, in the 1/4-filled extended Hubbard model is investigated using Cellular Dynamical Mean-Field Theory. We find a transition to a strongly renormalized charge ordered Fermi liquid at VCO and a metal-to-insulator transition at VMI>VCO. Short range antiferromagnetism occurs concomitanly with the CO transition. Approaching the charge ordered insulator the Fermi surface deforms and the scattering rate of electrons develops momentum dependence on the Fermi surface.

4 pages, 6 Figures, accepted for publication in Physical Review Letters

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Cited by in corpus (18)

• Beyond extended dynamical mean-field theory: Dual boson approach to the two-dimensional extended Hubbard model
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• Charge ordering and correlation effects in the extended Hubbard model
• Extended Hubbard model: Charge Ordering and Wigner-Mott transition
• Multisite versus multiorbital Coulomb correlations studied within finite-temperature exact diagonalization dynamical mean-field theory
• Bandwidth tuning triggers interplay of charge order and superconductivity in two-dimensional organic materials
• Charge order and antiferromagnetism in the extended Hubbard model
• Doping driven metal-insulator transitions and charge orderings in the extended Hubbard model
• Charge ordering and non-local correlations in the doped extended Hubbard model
• Phase diagram of the triangular extended Hubbard model
• Emergent Heavy Fermion Behavior at the Wigner-Mott Transition
• Unconventional metallic conduction in two-dimensional Hubbard-Wigner lattices
• CDMFT+HFD : an extension of dynamical mean field theory for nonlocal interactions applied to the single band extended Hubbard model
• Charge density wave in single-layer Pb/Ge(111) driven by Pb-substrate exchange interaction
• Generalized dynamical mean-field theory of two-subalttice systems with non-local interactions and its application to study charge and spin correlations in graphene
• Charge-Ordered States and the Phase Diagram of the Extended Hubbard Model on the Bethe lattice
• Paramagnetic phases of strongly correlated ultracold fermions coupled to an optical cavity
• Dynamical Cluster Approximation Study of Electron Localization in the Extended Hubbard Model