Extended linear chain approximation to the anisotropic ferromagnetic ising model
J. R. Faleiro Ferreira, N. P. Silva
Abstract Approximate critical temperatures of anisotropic ferromagnetic Ising models are calculated through a recently proposed extended variational method in statistical mechanics. Using a linear chain Ising Hamiltonian in an effective field as trial Hamiltonian, quite good results are obtained.
physica status solidi (b)•Nov 1, 1982•10 citations