2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/28329The behavior of the compensation temperature of a mixed Ising ferrimagnetic system on a square lattice in which the two interpenetrating square sublattices have spins $σ$ ($\pm 1/2$) and spins $S$ ($\pm 1,0$) has been studied with Monte Carlo methods. Our model includes nearest and next-nearest neighbor interactions, a crystal field and an external magnetic field. This model is relevant for understanding bimetallic molecular ferrimagnetic materials. We found that there is a narrow range of parameters of the Hamiltonian for which the model has compensation temperatures and that the compensation point exists only for small values of the external field.6 pages, 4 figures, to be published in the Materials Research Society, Symposium L proceedings. Spring 1998Materials ScienceStatistical Mechanicstext