Phase Transitions in the 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 × L × 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.