Quantum Resistive Behaviors in the Vortex Liquid Regimes at Finite Temperatures

Abstract

Motivated by a {\it mean field-like} resistive behavior in magnetic fields commonly seen in various superconducting (SC) cuprates and organics with strong fluctuation, {\it quantum} SC fluctuation effects on resistive behaviors are reexamined by putting emphasis on their roles in the so-called {\it thermal} vortex liquid regime. By incorporating the quantum fluctuation and a vortex pinning effect in the GL fluctuation theory, it is found that the resistivity curve shows not a fan-shaped broadening but a sharp drop at a 3d vortex-glass transition point far below an apparent upper critical field H_{c2}^*(T) as a result of a quantm fluctuation enhanced by an adequately small condensation energy or by a strong field. Fittings to data of cuprate and organic superconductors are performed by including effects of SC pseudogap region. It is argued on the cuprate materials that, irrespective of the presence of fluctuations of competing non-SC orders, the in-plane coherence length of hole-doped cuprates decreases on approaching the underdoped limit and that the condensation energy density to be measured from the heat capacity data is maximum near the optimal doping. The case of disordered quasi 2d s-wave films showing the field-tuned superconductor-insulator transition (FSIT) behavior is also studied for comparison, and an agreement with available data is found.

14 pages, 21 figures. To appear in J. Phys. Soc. Jpn. Vol.72, No.11 (Nov., 2003)

References in corpus (6)

• The high-field phase diagram of the cuprates derived from the Nernst effect
• Competing Order in the Mixed State of High Temperature Superconductors
• Low temperature vortex liquid states induced by quantum fluctuations in the quasi two dimensional organic superconductor kappa-(BEDT-TTF)_{2} Cu(NCS)_{2}
• Anomalous dissipation in the mixed state of underdoped cuprates close to the superconductor-insulator boundary
• Fluctuation Effects in Underdoped Cuprate Superconductors under Magnetic Field
• Absence of singular superconducting fluctuation corrections to thermal conductivity

Cited by in corpus (8)

• Unscaling Superconducting Parameters with $T_c$ for Bi-2212 and Bi-2223: A Magnetotransport Study in the Superconductive Fluctuation Regime
• Fluctuation Conductivity and Vortex State in Superconductor with Strong Paramagnetic Pair Breaking
• Comment on "Fluctuation-Driven First-Order Transition in Pauli-Limited $d$-Wave Superconductors"
• NMR Study on the Vortex Slush Phase in Organic Superconductor κ-(BEDT-TTF)2Cu(NCS)2
• Origin of positive out-of-plane magnetoconductivity in overdoped Bi${}_{1.6}$Pb${}_{0.4}$Sr${}_2$CaCu${}_{1.96}$Fe${}_{0.04}$O${}_{8+\delta }$
• Stabilization of vortex-liquid state by strong pairing interaction
• Effect of in-plane line defects on field-tuned superconductor-insulator transition behavior in homogeneous thin film
• Resistivity in Quantum Vortex Liquid of Clean Two-Dimensional Superconductor