F. Yasar et al., SOFTENING OF THE PHASE-TRANSITION IN A 2-DIMENSIONAL POTTS-MODEL UNDER QUENCHED BOND RANDOMNESS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 58(4), 1998, pp. 4210-4212
We have simulated, by using a cluster algorithm, the q=8 state Potts m
odel in two dimensions with a varying amount of quenched bond randomne
ss. We have shown that there exists a finite size-dependent threshold
value of the introduced quenched bond randomness for rounding the firs
t-order phase transition and that this threshold value becomes smaller
as the system size increases. [S1063-651X(98)15509-5].