Bardhan, K.K. - In: Physica A: Statistical Mechanics and its Applications 241 (1997) 1, pp. 267-277
We review here the response of mainly conductor-insulator mixtures just above the percolation threshold (pc) under dc bias. I–V characteristics changes from being linear to nonlinear as the applied bias is increased. Closer a sample is to pc, greater is the nonlinearity. Analysis of nonlinear...