Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
976681 | Physica A: Statistical Mechanics and its Applications | 2010 | 6 Pages |
Abstract
Critical and compensation properties of a mixed spin-1 and spin-3/2 Ising ferrimagnet on a square lattice are investigated by standard and histogram Monte Carlo simulations. The critical temperature is studied as a function of single-ion anisotropy strength. The second order of the phase transition is established by finite-size scaling for the entire boundary. Some previously obtained results, such as a tricritical point, predicted by the mean field theory (MFT) and the effective field theory (EFT), or a first-order transition line separating two different ordered phases, obtained by the cluster variational theory (CVT), are deemed artifacts of the respective approximations. So is a re-entrant phenomenon produced by CVT. Nevertheless, the multicompensation behavior predicted by MFT and EFT was confirmed.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
M. ŽukoviÄ, A. Bobák,