Abstract
Taking into account the thermal fluctuation effect, we have carried out numerical simulations of the single vortex dynamics in the presence of random pinning potential for YBCO system. The scaling behavior in the temperature dependence of the resistivity near a characteristic temperature T p is found, and its exponent is equal to 5.8 ± 0.2. Comparisons of our numerical results with the experimental measurements and the vortex glass model have been made.
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