Nonlinear resistance in high Tc superconductors as a function of bias current density, temperature and magnetic field

We propose a new approach to formulate and predict the nonlinear resistance in high T c superconductors quantitatively in a wide range of magnetic field and temperature based on a study on stochastic distribution of critical current density and scaling of pinning force densities. True superconductive region as well as the nonlinear resistive region, which is governed by a percolative partial flux flow have been shown.