Theory for Gossamer and Resonating Valence Bond Superconductivity

Abstract

We use an effective Hamiltonian for two-dimensional Hubbard model including an antiferromagnetic spin-spin coupling term to study recently proposed gossamer superconductivity. We formulate a renormalized mean field theory to approximately take into account the strong correlation effect in the partially projected Gutzwiller wavefucntions. At the half filled, there is a first order phase transition to separate a Mott insulator at large Coulomb repulsion U from a gossamer superconductor at small U. Away from the half filled,the Mott insulator is evolved into an resonating valence bond state, which is adiabatically connected to the gossamer superconductor.

10 pages, 13 figures

References in corpus (5)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• The Physics Behind High-Temperature Superconducting Cuprates: The "Plain Vanilla" Version Of RVB
• Gossamer Superconductor, Mott Insulator, and Resonating Valence Bond State in Correlated Electron Systems
• Mott Insulator to high \tc Superconductor via Pressure: Resonating Valence Bond theory and prediction of new Systems
• Magnetic Instability in Strongly Correlated Superconductors

Cited by in corpus (17)

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• Symmetry of the superconducting order parameter in frustrated systems determined by the spatial anisotropy of spin correlations
• d-wave superconductivity and its coexistence with antiferromagnetism in t-J-U model: Statistically consistent Gutzwiller approach
• Extended Gutzwiller Approximation for Inhomogeneous System
• Superconducting Pairing Symmetries in Anisotropic Triangular Quantum Antiferromagnets
• Hubbard model calculations of phase separation in optical lattices
• Gutzwiller variational theory for the Hubbard model with attractive interaction
• Variational Monte-Carlo studies of Gossamer Superconductivity
• Driving force of the orbital-relevant electronic nematicity in Fe-based superconductors
• U(1) symmetry breaking in one-dimensional Mott insulator studied by the Density Matrix Renormalization Group method
• Crossovers in Unitary Fermi Systems
• Enhancement of maximum superconducting temperature by applying pressure and reducing the charge transfer gap
• Electron pairing and evidence of a BCS-BEC crossover in d-wave superconductors
• One-band Hubbard model with hopping asymmetry and the effective theory at finite U: Phase diagram and metal-insulator transition
• t-t'-J-U model in mean-field approximation: Coexistence of superconductivity and antiferromagnetism