Experimental Study of the Elastic Properties of a Percolating System

Abstract

Simultaneous measurement of the conductivity and the elasticity exponents in two dimensions for a percolating system made of metal and voids is reported. The elasticity exponent is $T=3.5\ifmmode\pm\else\textpm\fi{}0.4$, much larger than the conductivity exponent $t=1.2\ifmmode\pm\else\textpm\fi{}0.1$. This result is in excellent agreement with the theoretical prediction of Bergman.