Normal State Nernst Effect in Electron-doped Pr2-xCexCuO4: Superconducting Fluctuations and Two-band Transport

Abstract

We report a systematic study of normal state Nernst effect in the electron-doped cuprates Pr${}_{2-x}$Ce${}_x$CuO${}_{4-\delta }$ over a wide range of doping (0.05$\le x\le$0.21) and temperature. At low temperatures, we observed a notable vortex Nernst signal above T${}_c$ in the underdoped films, but no such normal state vortex Nernst signal is found in the overdoped region. The superconducting fluctuations in the underdoped region are most likely incoherent phase fluctuations as found in hole-doped cuprates. At high temperatures, a large normal state Nernst signal is found at dopings from slightly underdoped to highly overdoped. Combined with normal state thermoelectric power, Hall effect and magnetoresistance measurements, the large Nernst effect is compatible with two-band model. For the highly overdoped films, the large Nernst effect is anomalous and not explainable with a simple hole-like Fermi surface seen in photoemission experiments.

9 pages, 8 figures, accepted in PRB

References in corpus (28)

• Theory of the Nernst effect near quantum phase transitions in condensed matter, and in dyonic black holes
• The Nernst effect in high-$T_c$ superconductors
• Doping dependence of an n-type cuprate superconductor investigated by ARPES
• Doping dependent evolution of the electronic structure of La2-xSrxCuO4 in the superconducting and metallic phases
• QED3 theory of pairing pseudogap in cuprates: From d-wave superconductor to antiferromagnet via "algebraic" Fermi liquid
• Gaussian superconducting fluctuations, thermal transport, and the Nernst effect
• Evidence for a quantum phase transition in the electron-doped cuprate Pr2-xCexCuO4+d from Hall and resistivity measurements
• Direct Observation of Non-Monotonic dx2-y2-Wave Superconducting Gap in Electron-Doped High-Tc Superconductor Pr0.89LaCe0.11CuO4
• Angle-Resolved Photoemission Spectroscopy of the Antiferromagnetic Superconductor Nd1.87Ce0.13CuO4: Anisotropic Spin-Correlation Gap, Pseudogap, and the Induced Quasiparticle Mass Enhancement
• Ambipolar Nernst effect in NbSe${}_2$
• Nernst effect in semi-metals: the meritorious heaviness of electrons
• Theory of Low-Temperature Hall Effect in Electron-Doped Cuprates
• Infrared Properties of Electron Doped Cuprates: Tracking Normal State Gaps and Quantum Critical Behavior in Pr(2-x)Ce(x)CuO(4)
• Nernst effect, quasiparticles, and d-density waves in cuprates
• Vorticity and the Nernst Effect in Cuprate Superconductors
• High-field Hall resistivity and magnetoresistance in electron-doped Pr_2-xCe_xCuO_{4-δ}
• Superfluid response in electron-doped cuprate superconductors
• Hole superconductivity in the electron-doped superconductor PCCO
• Nernst Effect and Anomalous Transport in Cuprates: A Preformed-Pair Alternative to the Vortex Scenario
• Physics of the Pseudogap State: Spin-Charge Locking
• Nernst effect in poor conductors and the cuprate superconductors
• Evidence for a quantum phase transition in electron-doped Pr${}_{2-x}$Ce${}_x$CuO${}_{4-\delta }$ from Thermopower measurements
• Optical determination of the superconducting energy gap in electron-doped Pr_{1.85}Ce_{0.15}CuO_4
• Tunneling into the normal state of Pr(2-x)CexCuO4
• Staggered flux vortices and the superconducting transition in the layered cuprates
• Nernst Effect in Electron-Doped Pr${}_{2-x}$Ce${}_x$CuO${}_4$
• Fluctuation Effects in Underdoped Cuprate Superconductors under Magnetic Field
• On the interpretation of the Nernst effect measurements in the cuprates

Cited by in corpus (28)

• Progress and perspectives on the electron-doped cuprates
• The Nernst effect and the boundaries of the Fermi liquid picture
• Enhancement of the Nernst effect by stripe order in a high-Tc superconductor
• Nernst and Seebeck Coefficients of the Cuprate SuperconductorYBa${}_2$Cu${}_3$O${}_{6.67}$: A Study of Fermi Surface Reconstruction
• Pseudogap temperature $T^{\star }$ of cuprate superconductors from the Nernst effect
• Giant Nernst Effect due to Fluctuating Cooper Pairs in Superconductors
• Colossal thermomagnetic response in the exotic superconductor URu2Si2
• Quasiparticle Nernst effect in stripe-ordered cuprates
• Nernst effect in the electron-doped cuprate superconductor PCCO: Superconducting fluctuations, upper critical field Hc2, and the origin of the Tc dome
• Correlation between Fermi surface transformations and superconductivity in the electron-doped high-$T_c$ superconductor Nd${}_{2-x}$Ce${}_x$CuO${}_4$
• Anisotropic superconductivity in the two-dimensional electron-phonon system
• Evidence for Antiferromagnetic Order in La${}_{2-x}$Ce${}_x$CuO${}_4$ from Angular Magnetoresistance Measurements
• The toy model for the high-Tc superconductivity
• BCS-like critical fluctuations with limited overlap of Cooper pairs in FeSe
• Nernst effect in the cuprate superconductor YBCO: Broken rotational and translational symmetries
• Nernst effect in the electron-doped cuprates
• Unusual Nernst effect and spin density wave precursors in superconducting $\mathbf{LaFeAs}{\mathbf{O}}_{1-\mathbf{x}}{\mathbf{F}}_{\mathbf{x}}$
• Ultrafast dynamics in the presence of antiferromagnetic correlations in electron-doped cuprate La${}_{2-x}$Ce${}_x$CuO${}_{4\pm \delta }$
• Magnetic exchange fields and domain wall superconductivity at an all-oxide superconductor / ferromagnet insulator interface
• Nernst Effect of stripe ordering La${}_{1.8-x}$Eu${}_{0.2}$Sr${}_x$CuO${}_4$
• Anomalous Enhancement of the Superconducting Transition Temperature in Electron-Doped Cuprate Heterostructures
• Transport anomalies and quantum criticality in electron-doped cuprate superconductors
• Nernst effect in the electron-doped cuprate superconductor La2-xCexCuO4
• Normal State Gap in Parent Cuprate Pr2CuO4+/-δ
• Magnetic field-tuned quantum criticality in optimally electron-doped cuprate thin films
• Anomalous mesoscopic kinetics in disordered superconductors
• Non-BCS temperature dependence of energy gap in thin film electron-doped cuprates
• Nernst Plateau in the Quantum Limit of Low-Carrier-Density Topological Insulators