Nernst effect and disorder in the normal state of high-T_{c} cuprates

Abstract

We have studied the influence of disorder induced by electron irradiation on the Nernst effect in optimally and underdoped YBa2Cu3O(7-d) single crystals. The fluctuation regime above T_{c} expands significantly with disorder, indicating that the T_{c} decrease is partly due to the induced loss of phase coherence. In pure crystals the temperature extension of the Nernst signal is found to be narrow whatever the hole doping, contrary to data reported in the low-T_{c} cuprates families. Our results show that the presence of "intrinsic" disorder can explain the enhanced range of Nernst signal found in the pseudogap phase of the latter compounds.

arXiv commentrevised version. to be published in Physical Review Letters

References in corpus (19)

• The pseudogap in high-temperature superconductors: an experimental survey
• The doping dependence of T* - what is the real high-Tc phase diagram?
• Effect of chemical inhomogeneity in the bismuth-based copper oxide superconductors
• The onset of the vortex-like Nernst signal above Tc in La_{2-x}Sr_xCuO_4 and Bi_2Sr_{2-y}La_yCuO_6
• Field-enhanced diamagnetism in intense magnetic field in the pseudogap state of the cuprate $\rm Bi_2Sr_2CaCu_2O_{8+δ}
• Gaussian superconducting fluctuations, thermal transport, and the Nernst effect
• The high-field phase diagram of the cuprates derived from the Nernst effect
• Effect of disorder outside the CuO${}_2$ planes on $T_c$ of copper oxide superconductors
• Respective influences of pair breaking and phase fluctuations in disordered high Tc superconductors
• Absence of static phase separation in the high-Tc cuprate $YB{a}_{2}C{u}_3{O}_{6+y}$
• Disorder and transport in cuprates: weak localization and magnetic contributions
• Nernst effect, quasiparticles, and d-density waves in cuprates
• Vorticity and the Nernst Effect in Cuprate Superconductors
• Universal Tc depression by irradiation defects in underdoped and overdoped cuprates
• Nernst Effect and Anomalous Transport in Cuprates: A Preformed-Pair Alternative to the Vortex Scenario
• Zn-doping effect on the magnetotransport properties of Bi_{2}Sr_{2-x}La_{x}CuO_{6+δ} single crystals
• Staggered flux vortices and the superconducting transition in the layered cuprates
• Anomalous dissipation in the mixed state of underdoped cuprates close to the superconductor-insulator boundary
• Fluctuation Effects in Underdoped Cuprate Superconductors under Magnetic Field

Cited by in corpus (42)

• Broken rotational symmetry in the pseudogap phase of a high-Tc superconductor
• Electron pockets in the Fermi surface of hole-doped high-Tc superconductors
• Defects in correlated metals and superconductors
• Striped superconductors: How the cuprates intertwine spin, charge and superconducting orders
• Diamagnetism and Cooper pairing above $T_c$ in cuprates
• The Nernst effect and the boundaries of the Fermi liquid picture
• Anomalous Transport Phenomena in Fermi Liquids with Strong Magnetic Fluctuations
• 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
• Observation of the Nernst signal generated by fluctuating Cooper pairs
• High Field Studies of Superconducting Fluctuations in High-T_c Cuprates: Evidence for a Small Gap distinct from the Large Pseudogap
• Temperature range of superconducting fluctuations above T_c in YBa_2Cu_3O_{7-δ} single crystals
• Colossal thermomagnetic response in the exotic superconductor URu2Si2
• Superconducting Fluctuations, Pseudogap and Phase Diagram in Cuprates
• Total suppression of superconductivity by high magnetic fields in YBa2 Cu3O6.6
• Nernst effect in the electron-doped cuprate superconductor PCCO: Superconducting fluctuations, upper critical field Hc2, and the origin of the Tc dome
• The toy model for the high-Tc superconductivity
• Anisotropic superconductivity in the two-dimensional electron-phonon system
• Ultrafast carrier localisation in the pseudogap state of cuprate superconductors from coherent quench experiments
• Separating pairing from quantum phase coherence dynamics above the superconducting transition by femtosecond spectroscopy
• Theory of Resistivity Upturns in Metallic Cuprates
• Giant Nernst and Hall Effects in Chiral Superconductors due to Berry Phase Fluctuations
• Universal inhomogeneous magnetic-field response in the normal state of cuprate high-Tc superconductors
• Influence of the pseudogap on the Nernst coefficient of Y0.9Ca0.1Ba2Cu3Oy
• Superconducting Fluctuation and Pseudogap in Disordered Short Coherence Length Superconductor
• Enhancement of superconducting fluctuation under the coexistence of a competing pseudogap state in Bi2Sr2-xRxCuOy
• The conductivity and the magnetization around Tc in optimally-doped YBa${}_2$Cu${}_3$O${}_{7-\delta }$ revisited: quantitative analysis in terms of fluctuating superconducting pairs
• Nernst response, viscosity and mobile entropy in vortex liquids
• Correlation between incoherent phase fluctuations and disorder in Y${}_{1-x}$Pr${}_x$Ba${}_2$Cu${}_3$O${}_{7-\delta }$ epitaxial films from Nernst effect measurements
• Influence of Disorder on the Hall Effect in Bi${}_2$Sr${}_2$CuO${}_{6+\delta }$
• High-field muSR studies of superconducting and magnetic correlations in cuprates above Tc
• Numerical Simulation of the Nernst Effect in Extreme Type-II Superconductors: A Negative Nernst Signal and its Noise Power Spectra
• Nernst Effect in NdBa_2[Cu_{1-y}Ni_y]_3O_{7-δ}
• Pseudogap Suppression by Competition with Superconductivity in La-Based Cuprates
• Impurity induced resistivity upturns in underdoped cuprates
• What do we learn from impurities and disorder in High Tc cuprates?
• Charge order, superconducting correlations, and $\mu$SR
• Nature of c-axis coupling in underdoped Bi2Sr2CaCu2O8 with varying degrees of disorder
• Universal superconducting fluctuations and the implications for the phase diagram of the cuprates
• Flux-induced Nernst effect in a superconducting loop
• Precursor superconducting diamagnetism in YBa2Cu3O7-d with in-plane or intercalated magnetic impurities
• Phenomenological model for the third-harmonic magnetic response of superconductors: application to Sr${}_2$RuO${}_4$