Electronic spectrum and superconductivity in the extended t-J-V model

Abstract

A consistent microscopic theory of superconductivity for strongly correlated electronic systems is presented within the extended t-J-V model where the intersite Coulomb repulsion and the electron-phonon interaction are taken into account. The exact Dyson equation for the normal and anomalous (pair) Green functions is derived for the projected (Hubbard) electronic operators. The equation is solved in the self-consistent Born approximation for the self-energy. We obtain the d-wave pairing with high-Tc induced by the strong kinematical interaction of the order of the kinetic energy $\sim t$ of electrons with spin fluctuations which is much larger than the exchange interaction J. The Coulomb repulsion and the electron-phonon interaction give small contributions for the d-wave pairing. These results support the spin-fluctuation mechanism of high-temperature superconductivity in cuprates previously proposed in phenomenological models.

arXiv comment19 pages, 23 figures, 145 references

References in corpus (64)

• Correlated Electrons in High Temperature Superconductors
• Electronic Structure Calculations with Dynamical Mean-Field Theory: A Spectral Density Functional Approach
• Quantum Cluster Theories
• Band-structure trend in hole-doped cuprates and correlation with Tcmax
• The Physics Behind High-Temperature Superconducting Cuprates: The "Plain Vanilla" Version Of RVB
• The spectral weight of the Hubbard model through cluster perturbation theory
• Self-energy-functional approach to systems of correlated electrons
• Variational cluster approach to correlated electron systems in low dimensions
• Cluster Perturbation Theory for Hubbard models
• Strongly Correlated Superconductivity: a plaquette Dynamical mean field theory study
• Momentum space anisotropy and pseudogaps: a comparative cluster dynamical mean field analysis of the doping-driven metal-insulator transition in the two dimensional Hubbard model
• Pseudogap and high-temperature superconductivity from weak to strong coupling. Towards quantitative theory
• Anomalous superconductivity and its competition with antiferromagnetism in doped Mott insulators
• High Tc Superconductors -- A Variational Theory of the Superconducting State
• Dual fermion approach to the two-dimensional Hubbard model: Antiferromagnetic fluctuations and Fermi arcs
• Pseudogaps in Strongly Correlated Metals: A generalized dynamical mean-field theory approach
• Novel neutron resonance mode in $d_{x^2-y^2}$ superconductors
• Efficient perturbation theory for quantum lattice models
• Asymmetry of the electronic states in hole- and electron-doped cuprates: Exact diagonalization study of the t-t'-t''-J model
• The Structure of the Pairing Interaction in the 2D Hubbard Model
• Momentum-sector-selective metal-insulator transition in the eight-site dynamical mean-field approximation to the Hubbard model in two dimensions
• The Hubbard model within the equations of motion approach
• Self-energy-functional theory
• Doping dependence of the Fermi surface in Bi(Pb)2212
• Surprises in the doping dependence of the Fermi surface in Bi(Pb)-2212
• d_{x^2-y^2}-wave superconductivity and the Hubbard model
• Theory of spin and charge fluctuations in the Hubbard model
• Effects of next-nearest-neighbor hopping $t^{\prime }$ on the electronic structure of cuprates
• Doping evolution of the electronic structure in the single-layer cuprates Bi${}_2$Sr${}_{2-x}$La${}_x$CuO${}_{6+\delta }$: Comparison with other single-layer cuprates
• Magnetic fluctuations and resonant peak in cuprates: a microscopic theory
• Gap anisotropy and universal pairing scale in a spin fluctuation model for cuprates
• Phase separation and competition of superconductivity and magnetism in the two-dimensional Hubbard model: From strong to weak coupling
• Electronic spectrum in high-temperature cuprate superconductors
• The doping-driven evolution of the superconducting state of a doped Mott insulator: a key for the high temperature superconductivity
• "Destruction" of the fermi surface due to pseudogap fluctuations in strongly correlated systems
• Renormalized mean-field t-J model of high-Tc superconductivity: comparison with experiment
• Scaling of the magnetic response in doped antiferromagnets
• Manifestation of the magnetic resonance mode in the nodal quasiparticle lifetime in superconducting cuprates
• Kinetic-energy driven superconductivity in cuprate superconductors
• Dynamic spin susceptibility in the t-J model
• Superconducting pairing of spin polarons in the t-J model
• Two-dimensional t-J model at moderate doping
• Non-Perturbative Treatment of Charge and Spin Fluctuations in the Two-Dimensional Extended Hubbard Model: Extended Two-Particle Self-Consistent Approach
• Underdoped cuprates phenomenology in the 2D Hubbard model within COM(SCBA)
• On the theory of superconductivity in the extended Hubbard model: Spin-fluctuation pairing
• Increasing d-wave superconductivity by on site repulsion
• Spectral functions, Fermi surface and pseudogap in the t-J model
• A consistent statistical treatment of the renormalized mean-field t-J model
• Dynamic spin susceptibility of superconducting cuprates: A microscopic theory of the magnetic resonance mode
• Spin-fluctuation mechanism of superconductivity in cuprates
• The rotationally invariant approximation for the two-dimensional t-J model
• One-loop approximation for the Hubbard model
• Spin fluctuations and high-temperature superconductivity in cuprates
• Spectral properties of the planar t-J model
• Magnetic collective mode in underdoped cuprates: a phenomenological analysis
• Doping and temperature evolution of pseudogap and spin-spin correlations in the two-dimensional Hubbard model
• Spectral properties near the Mott transition in the two-dimensional t-J model
• Double dispersion of the magnetic resonant mode in cuprates
• Operator projection method applied to the single-particle Green's function in the Hubbard model
• Dynamical Mean-Field Theory
• The Composite Operator Method (COM)
• Spectral functions and pseudogap in the t-J model
• Electron Green's Function in the Planar t-J Model
• Fermi surface enlargement on the Kondo lattice

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