Noise and crossover exponent In the two-component random resistor network
|Title||Noise and crossover exponent In the two-component random resistor network|
|Publication Type||Journal Article|
|Year of Publication||1991|
|Authors||Tremblay RR, Albinet G, Tremblay A-MS|
|Journal||Physical Review B|
The resistance noise of random conductor-insulator mixtures is studied in the case where the insulator has a small, but finite conductivity. Based on the structure of a simple renormalization group, a general homogeneity relation for the noise of both insulators and conductors is suggested. The expression for the total noise is valid from the noisy-conductor quiet-insulator limit to the quiet-conductor noisy-insulator limit. Monte Carlo simulations confirm the scaling predictions. For all multifractal moments, there is a single crossover exponent associated with the small finite conductivity of the insulator.