A competing order scenario of two-gap behavior in hole doped cuprates

Abstract

Angle-dependent studies of the gap function provide evidence for the coexistence of two distinct gaps in hole doped cuprates, where the gap near the nodal direction scales with the superconducting transition temperature $T_c$, while that in the antinodal direction scales with the pseudogap temperature. We present model calculations which show that most of the characteristic features observed in the recent angle-resolved photoemission spectroscopy (ARPES) as well as scanning tunneling microscopy (STM) two-gap studies are consistent with a scenario in which the pseudogap has a non-superconducting origin in a competing phase. Our analysis indicates that, near optimal doping, superconductivity can quench the competing order at low temperatures, and that some of the key differences observed between the STM and ARPES results can give insight into the superlattice symmetry of the competing order.

9 pages, 7 figs

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Cited by in corpus (16)

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• Intermediate Coupling Model of the Cuprates
• Emergence of non-Fermi-liquid behavior due to Fermi surface reconstruction in the underdoped cuprate superconductors
• Fermi Arcs in the Superconducting Clustered State for Underdoped Cuprates
• Extinction of quasiparticle interference in underdoped cuprates with coexisting order
• Failure of t-J models in describing doping evolution of spectral weight in x-ray scattering, optical and photoemission spectra of the cuprates
• Superconductivity and topological Fermi surface transitions in electron-doped cuprates near optimal doping
• Q=0 collective modes originating from the low-lying Hg-O band in the superconducting HgBa2CuO4+δ
• Phase Competition and Anomalous Thermal Evolution in High-Temperature Superconductors
• Electron-like Fermi surface and in-plane anisotropy due to chain states in YBa${}_2$Cu${}_3$O${}_{7-\delta }$ superconductors
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• Evidence for a temperature dependent anisotropy of the superconducting state parameters in underdoped SmBa2Cu3Ox
• Interplay between charge density wave and superconductivity in multi-band systems with inter-band Coulomb interaction
• Discerning electronic fingerprints of nodal and antinodal nestings and their phase coherences in doped cuprate superconductors
• Anisotropic Thermal Transport in Superconductors with Coexisting Spin Density Waves