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

Abstract 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.