The tricritical point of the site-diluted three-dimensional 5-state Potts model

•We have carefully read the referees' comments and have revised and supplemented the paper with their consideration.•The introduction is supplemented with important information for the Potts model. In addition, in section 3 we give phase diagram for the site-diluted three-dimensional 5-state Potts model and unique spin configurations gained by visualization of a numerical experiment for a model system at various temperatures at the tricritical point pt = 0.80. The phase transitions in the three-dimensional standard weakly diluted 5-state Potts model on a simple cubic lattice are examined by computer simulation. The calculations are carried out for systems with periodic boundary conditions and spin concentrations p = 1.0; 0.90; 0.85; 0.8. The value of the tricritical point pt in the phase diagram is found using Binder cumulants and histogram analysis of the data. Magnetic structures corresponding to different temperature regimes in the vicinity of the tricritical point are obtained.