Anisotropic evolution of energy gap in Bi2212 superconductor

Abstract

We present a systematic analysis of the energy gap in underdoped Bi2212 superconductor as a function of temperature and hole doping level. Within the framework of the theoretical model containing the electron-phonon and electron-electron-phonon pairing mechanism, we reproduced the measurement results of modern ARPES experiments with very high accuracy. We showed that the energy-gap amplitude is very weakly dependent on the temperature but clearly dependent on the level of doping. The evidence for a non-zero energy gap above the critical temperature, referred to as a pseudogap, was also obtained.

References in corpus (21)

• The pseudogap in high-temperature superconductors: an experimental survey
• Theory of Intertwined Orders in High Temperature Superconductors
• Two Gaps Make a High Temperature Superconductor?
• Energy gaps in high-transition temperature cuprate superconductors
• Diamagnetism and Cooper pairing above $T_c$ in cuprates
• Phase competition in trisected superconducting dome
• Appearance of fluctuating stripes at the onset of the pseudogap in the high-Tc Superconductor Bi2Sr2CaCu2O8+x
• Predominantly Superconducting Origin of Large Energy Gaps in Underdoped Bi2Sr2CaCu2O8-d from Tunneling Spectroscopy
• Angle-resolved photoemission in high Tc cuprates from theoretical viewpoints
• ARPES studies of cuprate Fermiology: superconductivity, pseudogap, and quasiparticle dynamics
• Energy gap evolution in the tunneling spectra of Bi2Sr2CaCu2O8+d
• ARPES study of the superconducting gap and pseudogap in Bi2Sr2CaCu2O8+x
• The toy model for the high-Tc superconductivity
• Anisotropic superconductivity in the two-dimensional electron-phonon system
• Pseudogap phenomena in ultracold atomic Fermi gases
• Pairing mechanism of high-temperature superconductivity: Experimental constraints
• Origin of the Pseudogap in High-Temperature Cuprate Superconductors
• Universal features in the photoemission spectroscopy of high temperature superconductors
• Anisotropy of the gap parameter in the hole-doped cuprates
• Electron-phonon pairing mechanism: cuprates with high value of the critical temperature
• Probing the Phase Diagram of Bi2Sr2CaCu2O8+d with Tunneling Spectroscopy

Cited by in corpus (3)

• Superconducting properties of 3D low-density TI-bipolaron gas
• Crystal Growth and High-Pressure Effects of Bi-Based Superconducting Whiskers
• Crystal Growth of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ Whiskers from Pulverized Amorphous Precursors