Two gaps with one energy scale in cuprate superconductors

Abstract

The interplay between the superconducting gap and normal-state pseudogap in cuprate superconductors is studied based on the kinetic energy driven superconducting mechanism. It is shown that the interaction between charge carriers and spins directly from the kinetic energy by exchanging spin excitations in the higher power of the doping concentration induces the normal-state pseudogap state in the particle-hole channel and superconducting state in the particle-particle channel, therefore there is a coexistence of the superconducting gap and normal-state pseudogap in the whole superconducting dome. This normal-state pseudogap is closely related to the quasiparticle coherent weight, and is a necessary ingredient for superconductivity in cuprate superconductors. In particular, both the normal-state pseudogap and superconducting gap are dominated by one energy scale, and they are the result of the strong electron correlation.

7 pages, 3 figures, added discussions and references, accepted for publication in Phys. Rev. B

References in corpus (17)

• Scanning tunneling spectroscopy of high-temperature superconductors
• Inelastic Light Scattering From Correlated Electrons
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• A Phenomenological Theory of The Pseudogap State
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• From a single-band metal to a high-temperature superconductor via two thermal phase transitions (Supporting Material)
• The magnetic nature of superconductivity in doped cuprates
• Emergence of Cooper pairs, d-wave duality and the phase diagram of cuprate superconductors
• Electronic structure of kinetic energy driven superconductors
• Electronic structure of kinetic energy driven superconductors in the presence of bilayer splitting
• Doping dependence of Meissner effect in cuprate superconductors
• Magnetic field induced reduction of the low-temperature superfluid density in cuprate superconductors
• Asymmetry of the electron spectrum in hole-doped and electron-doped cuprates
• Doping and energy dependent microwave conductivity of kinetic energy driven superconductors with extended impurities
• Out-of-plane impurities induced the deviation from the monotonic d-wave superconducting gap in cuprate superconductors
• Anisotropic microwave conductivity of cuprate superconductors in the presence of CuO chain induced impurities

Cited by in corpus (32)

• Kinetic-energy driven superconductivity in cuprate superconductors
• d-wave superconductivity and its coexistence with antiferromagnetism in t-J-U model: Statistically consistent Gutzwiller approach
• Electronic structure of cuprate superconductors in a full charge-spin recombination scheme
• Charge order driven by Fermi-arc instability and its connection with pseudogap in cuprate superconductors
• Peak-structure in self-energy of cuprate superconductors
• Interplay between charge order and superconductivity in cuprate superconductors
• Anomalous electron spectrum and its relation to peak structure of electron scattering rate in cuprate superconductors
• Doping dependence of thermodynamic properties in cuprate superconductors
• Anisotropic dressing of electrons in electron-doped cuprate superconductors
• Low-temperature T-linear resistivity in the strange metal phase of overdoped cuprate superconductors due to umklapp scattering from a spin excitation
• Pseudogap-induced anisotropic suppression of electronic Raman response in cuprate superconductors
• Influence of impurities on electronic structure in cuprate superconductors
• Hidden pair-density-wave order in cuprate superconductors
• Pseudogap and charge dynamics in doped cuprates
• ARPES autocorrelation in electron-doped cuprate superconductors
• Low-temperature T${}^2$ resistivity in the underdoped pseudogap phase versus T-linear resistivity in the overdoped strange-metal phase of cuprate superconductors
• Quasiparticle scattering interference in cuprate superconductors
• Characteristic energy of the nematic-order state and its connection to enhancement of superconductivity in cuprate superconductors
• Renormalization of electrons in bilayer cuprate superconductors
• Coexistence of $s$- and $d$-wave gaps due to pair-hopping and exchange interactions
• Proximity effects and pair currents in cuprate junctions
• Pseudogap-induced asymmetric tunneling in cuprate superconductors
• Pseudogap and its connection to particle-hole asymmetry electronic state and Fermi arcs in cuprate superconductors
• Doping dependence of electromagnetic response in cuprate superconductors
• Effect of the pseudogap on the infrared response in cuprate superconductors
• Evolution of electron Fermi surface with doping in cobaltates
• Asymmetric doping dependence of superconductivity between hole- and electron-doped triangular-lattice superconductors
• Correlation between the strength of low-temperature T-linear normal-state resistivity and $T_{\mathrm{c}}$ in overdoped electron-doped cuprate superconductors
• Electromagnetic response of cuprate superconductors with coexisting electronic nematicity
• Renormalization of dispersion in electron-doped bilayer cuprate superconductors
• Microwave conductivity due to impurity scattering in cuprate superconductors
• Impurity-Scattering Assisted Umklapp Scattering as the Origin of Low-Temperature Resistivity in the Normal-State of Cuprate Superconductors