Peak-structure in self-energy of cuprate superconductors

Abstract

The recently deduced normal and anomalous self-energies from photoemission spectra of cuprate superconductors via the machine learning technique are calling for an explanation. Here the normal and anomalous self-energies in cuprate superconductors are analyzed within the framework of the kinetic-energy-driven superconductivity. It is shown that the exchanged spin excitations give rise to the well-pronounced low-energy peak-structures in both the normal and anomalous self-energies, however, they do not cancel in the total self-energy. In particular, the peak-structure in the normal self-energy is mainly responsible for the peak-dip-hump structure in the single-particle excitation spectrum, and can persist into the normal-state, while the sharp peak in the anomalous self-energy gives rise to a crucial contribution to the superconducting gap, and vanishes in the normal-state. Moreover, the evolution of the peak-structure with doping and momentum are also analyzed.

arXiv comment9 pages, 6 figures, added references and discussions; accepted for publication in Physical Review B. arXiv admin note: text overlap with arXiv:2001.01054

References in corpus (36)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• The pseudogap in high-temperature superconductors: an experimental survey
• Destruction of the Fermi Surface in Underdoped High Tc Superconductors
• From Fermi Arcs to the Nodal Metal: Scaling of the Pseudogap with Doping and Temperature
• Two Gaps Make a High Temperature Superconductor?
• Resonant x-ray scattering studies of charge order in cuprates
• Electronic Spectra and Their Relation to the (pi,pi) Collective Mode in High-Tc Superconductors
• Doping Evolution of the Underlying Fermi Surface in La2-xSrxCuO4
• Bosonic Mode Mixing in the Superconducting State Spectral Function of Bi_2Sr_2CaCu_2O_{8+delta}
• Anomalous superconductivity and its competition with antiferromagnetism in doped Mott insulators
• Fermi Surface and Pseudogap Evolution in a Cuprate Superconductor
• Photoemission perspective on pseudogap, superconducting fluctuations, and charge order in cuprates: a review of recent progress
• Bosons in high temperature superconductors: an experimental survey
• A gauge invariant dressed holon and spinon description of the normal-state of underdoped cuprates
• Kinetic energy driven superconductivity in doped cuprates
• Fermion-Spin Transformation to Implement the Charge-Spin Separation
• Collapse of the Fermi surface and fingerprints of order in the pseudogap state of cuprate superconductors
• Non-dispersive Fermi arcs and absence of charge ordering in the pseudogap phase of Bi2Sr2CaCu2O8+d
• The magnetic nature of superconductivity in doped cuprates
• Kinetic-energy driven superconductivity in cuprate superconductors
• Superconducting coherence peak in the electronic excitations of a single layer cuprate superconductor $B{i}_{2}S{r}_{1.6}L{a}_{0.4}Cu{O}_{6+\delta }$
• Superconducting pairing of spin polarons in the t-J model
• TRILEX and $GW$+EDMFT approach to $d$-wave superconductivity in the Hubbard model
• Two gaps with one energy scale in cuprate superconductors
• Revealing the ortho-II Band Folding in YBa2Cu3O7-delta Films
• Electronic structure of cuprate superconductors in a full charge-spin recombination scheme
• Superfluid stiffness in cuprates: Effect of Mott transition and phase competition
• Direct observation of self energy signatures of the resonant collective mode in Bi2Sr2CaCu2O8
• Unambiguous connection between the Fermi surface topology and the pseudogap in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+d}$
• Autocorrelation of quasiparticle spectral intensities and its connection with quasiparticle scattering interference in cuprate superconductors
• The pairing glue in cuprate superconductors from the self-energy revealed via machine learning
• 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
• Hidden pair-density-wave order in cuprate superconductors
• Doping and momentum dependence of coupling strength in cuprate superconductors
• Renormalization of electrons in bilayer cuprate superconductors

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• Quasiparticle scattering interference in cuprate superconductors
• Hidden self-energies as origin of cuprate superconductivity revealed by machine learning
• Impurity-Scattering Assisted Umklapp Scattering as the Origin of Low-Temperature Resistivity in the Normal-State of Cuprate Superconductors
• Electromagnetic response of cuprate superconductors with coexisting electronic nematicity
• Renormalization of dispersion in electron-doped bilayer cuprate superconductors
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