  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 a
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 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
reentrant phenomenon produced by CVT. Nevertheless, the multicompensation
behavior predicted by MFT and EFT was confirmed.
