2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/27043High-accuracy Swendsen and Wang Monte Carlo simulations were performed to study the Curie temperature of ferromagnetic, binary Ising systems on the square lattice. Our results are compared with mean-field like approaches. Based on these former theories, we give a new formula to estimate the Curie temperature of the system.nr. of pages:12 TEX, C Version 3.14t3 Scientific Report, Univ. Bergen, Dept. of Physics No: 01/1994 7 figures upon requestCondensed Mattertext