Bethe Approximation for a Two-Dimensional Spin-Pseudospin System
We have treated a two-dimensional spin-pseudospin model, which generalizes a diluted antiferromagnetic Ising model with charged nonmagnetic impurities in the case of two types of charges. The analytical results in the Bethe approximation are compared with the results of numerical simulation using the classical Monte Carlo method for various parameters.
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗