Vortex liquid phase in Pb–8.23wt.%In alloy films

Isothermal current-voltage (J-E) characteristics in the mixed state for Pb-8.23wt.%In alloys are measured. The isothermal log J vs. log E characteristics show the similar behaviors to those observed in the vortex glass-vortex liquid (VG-VL) transition in high T-c oxide superconductors. It is found that the VG-VL phase transition exists. The transition temperature, the static and dynamical critical exponents are determined. (C) 2003 Elsevier Science B.V. All rights reserved.