Dependence of the critical temperature on microscopic parameters in the three-dimensional Ising-like systems

摘要

The critical behaviour of the three-dimensional Ising-like system on a simple cubic lattice with an exponentially decreasing interaction potential is investigated within the collective variables method. The solution of the equation for the phase transition temperature is obtained by taking into accountudthe dependence of its coefficients on the temperature. The dependence ofudthe critical temperature on the interaction potential range is studied.