Erdinç, Ahmet; Keskin, Mustafa - In: Physica A: Statistical Mechanics and its Applications 307 (2002) 3, pp. 453-468
Equilibrium properties of the spin-1 Ising model with the arbitrary bilinear (J) and biquadratic (K) pair interactions are studied on a body centered cubic lattice by using the pair approximation of the cluster variation method, which is identical to the Bethe approximation, in the quadrupolar...