Tunneling into the normal state of Pr(2-x)CexCuO4

Abstract

The temperature dependence of the tunneling conductance was measured for various doping levels of Pr(2-x)CexCuO4 using planar junctions. A normal state gap is seen at all doping levels studied, x=0.11 to x=0.19. We find it to vanish above a certain temperature T*. T* is greater than Tc for the underdoped region and it follows Tc on the overdoped side. This behavior suggests finite pairing amplitude above Tc on the underdoped side.

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• Dirty Superconductivity in the Electron-Doped Cuprate PCCO: a Tunneling Study
• Evidence for Antiferromagnetic Order in La${}_{2-x}$Ce${}_x$CuO${}_4$ from Angular Magnetoresistance Measurements
• Normal State Nernst Effect in Electron-doped Pr2-xCexCuO4: Superconducting Fluctuations and Two-band Transport
• Local tunneling spectroscopy of the electron-doped cuprate Sm1.85Ce0.15CuO4
• Anomalous Enhancement of the Superconducting Transition Temperature in Electron-Doped Cuprate Heterostructures
• Transport anomalies and quantum criticality in electron-doped cuprate superconductors
• Andreev bound states at a cuprate grain boundary junction: A lower bound for the upper critical field
• Upper critical field of electron-doped Pr${}_{2-x}$Ce${}_x$CuO${}_{4-\delta }$ in parallel magnetic fields
• Anomalous normal state gap in an electron-doped cuprate
• Single superconducting energy scale in electron-doped cuprate superconductor Pr_2-xCexCuO_4
• Raman light scattering study and microstructural analysis of epitaxial films of the electron-doped superconductor La_{2-x}Ce_{x}CuO_{4}
• Normal State Gap in Parent Cuprate Pr2CuO4+/-δ
• c-Axis longitudinal magnetoresistance of the electron-doped superconductor Pr1.85Ce0.15CuO4
• Optical Spectroscopy as a Probe of Gaps and Kinetic Electronic Energy in p- and n-type cuprates
• Evolution of a bosonic mode across the superconducting dome in the high-Tc cuprate Pr(2-x)Ce(x)CuO(4-δ)
• The commensurate magnetic excitations induced by band-splitting and Fermi surface topology in n-type Cuprates
• Gap like structure in a nonsuperconducting layered oxycarbonate Bi${}_{2+x}$Sr${}_{4-x}$Cu${}_2$CO${}_3$O${}_{8+\delta }$ single crystal