Charge order driven by Fermi-arc instability and its connection with pseudogap in cuprate superconductors

Abstract

The recently discovered charge order is a generic feature of cuprate superconductors, however, its microscopic origin remains debated. Within the framework of the fermion-spin theory, the nature of charge order in the pseudogap phase and its evolution with doping are studied by taking into account the electron self-energy (then the pseudogap) effect. It is shown that the antinodal region of the electron Fermi surface is suppressed by the electron self-energy, and then the low-energy electron excitations occupy the disconnected Fermi arcs located around the nodal region. In particular, the charge-order state is driven by the Fermi-arc instability, with a characteristic wave vector corresponding to the hot spots of the Fermi arcs rather than the antinodal nesting vector. Moreover, although the Fermi arc increases its length as a function of doping, the charge-order wave vector reduces almost linearity with the increase of doping. The theory also indicates that the Fermi arc, charge order, and pseudogap in cuprate superconductors are intimately related each other, and all of them emanates from the electron self-energy due to the interaction between electrons by the exchange of spin excitations.

arXiv comment10 pages, 8 figures, added comments and reference, accepted for publication in Philosophical Magazine. arXiv admin note: text overlap with arXiv:1502.02903

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• Doping dependence of charge order in electron-doped 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
• Emergence of charge order in a staggered loop-current phase of cuprate high-temperature 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
• Correlation between charge order and second-neighbor hopping in cuprate superconductors
• ARPES autocorrelation in electron-doped cuprate superconductors
• Enhancement of superconductivity by electronic nematicity in cuprate superconductors
• Hidden pair-density-wave order in 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
• Renormalization of electrons in bilayer cuprate superconductors
• Doping and momentum dependence of coupling strength in cuprate superconductors
• Doping dependence of electromagnetic response in cuprate superconductors
• Evolution of electron Fermi surface with doping in cobaltates
• Unusual electronic structure in underdoped cuprate superconductors
• Impurity-Scattering Assisted Umklapp Scattering as the Origin of Low-Temperature Resistivity in the Normal-State of Cuprate Superconductors