Phase transitions in a three-dimensional weakly diluted potts model with $q=5$

Using computer-based simulation methods, phase transitions in the three-dimensional weakly diluted Potts model with the spin state number $q=5$ are studied. Systems with linear dimensions $L\times L\times L=N$, $L$ = 10–40, at spin concentrations $p$ = 1.00 and 0.90 are considered. The obtained numerical data indicate that introduction of a minor disorder in the form of nonmagnetic impurities ($p$ = 0.90) into the three-dimensional Potts model with $q=5$ is not significant for the first-order phase transition.