Oxygen hole content, charge-transfer gap, covalency, and cuprate superconductivity

Abstract

Experiments have shown that the families of cuprate superconductors that have the largest transition temperature at optimal doping also have the largest oxygen hole content at that doping. They have also shown that a large charge-transfer gap, a quantity accessible in the normal state, is detrimental to superconductivity. We solve the three-band Hubbard model with cellular dynamical mean-field theory and show that both of these observations follow from the model. Cuprates play a special role amongst doped charge-transfer insulators of transition metal oxides because copper has the largest covalent bonding with oxygen.

arXiv comment7 pages, 3 figures

References in corpus (35)

• Electronic Structure Calculations with Dynamical Mean-Field Theory: A Spectral Density Functional Approach
• A continuous-time solver for quantum impurity models
• Theory of Intertwined Orders in High Temperature Superconductors
• LDA energy bands, low-energy Hamiltonians, t', t'', t_{perp}(k), and J_{perp}
• Competing states in the t-J model: uniform d-wave state versus stripe state
• Absence of superconductivity in the pure two-dimensional Hubbard model
• Numerical evidence of fluctuating stripes in the normal state of high-Tc cuprate superconductors
• Linear in Temperature Resistivity and Associated Mysteries
• Strongly Correlated Superconductivity: a plaquette Dynamical mean field theory study
• Anomalous superconductivity and its competition with antiferromagnetism in doped Mott insulators
• The 2021 Quantum Materials Roadmap
• New Perspective on the Phase Diagram of Cuprate High-Temperature Superconductors
• Scaling of the transition temperature of hole-doped cuprate superconductors with the charge-transfer energy
• Sum-rules and bath-parametrization for quantum cluster theories
• Apical oxygens and correlation strength in electron and hole doped copper oxides
• Does Simple Two-Dimensional Hubbard Model Account for High-Tc Superconductivity in Copper Oxides?
• Measurement of x-ray absorption spectra of overdoped high-temperature cuprate superconductors: Inapplicability of the single-band Hubbard model
• Pairing dynamics in strongly correlated superconductivity
• Relationship between the parent charge transfer gap and maximum transition temperature in cuprates
• Evidence for a Vestigial Nematic State in the Cuprate Pseudogap Phase
• An organizing principle for two-dimensional strongly correlated superconductivity
• Phase Diagram of a Three Orbital Model for the high-T${}_c$ cuprates
• A magnetic analog of the isotope effect in cuprates
• Resilience of d-wave superconductivity to nearest-neighbor repulsion
• Coexistence of Superconductivity and Antiferromagnetism in the Hubbard model for cuprates
• Ground-state phase diagram of the three-band Hubbard model from density matrix embedding theory
• Spatial Correlations and the Insulating Phase of the High-$T_c$ Cuprates: Insights from a Configuration-Interaction-Based Solver for Dynamical Mean Field Theory
• Doping Evolution of Oxygen K-edge X-ray Absorption Spectra in Cuprate Superconductors
• Pseudogap and superconductivity in two-dimensional doped charge-transfer insulators
• Role of oxygen-oxygen hopping in the three-band copper-oxide model: quasiparticle weight, metal insulator and magnetic phase boundaries, gap values and optical conductivity
• Orbital structure of the effective pairing interaction in the high-temperature superconducting cuprates
• Pairing correlations in the cuprates: a numerical study of the three-band Hubbard model
• A Common Thread
• Pseudogap transition within the superconducting phase in the three-band Hubbard model
• Superconductivity in the three-band model of cuprates: nodal direction characteristics and influence of intersite interactions