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 $T=3.5\mathrm{}\pm 0.4$, much larger than the conductivity exponent $t=1.2\mathrm{}\pm 0.1$. This result is in excellent agreement with the theoretical prediction of Bergman.

• Received 16 July 1984

DOI:https://doi.org/10.1103/PhysRevLett.53.2028