Deviren, Bayram; Ertaş, Mehmet; Keskin, Mustafa - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 10, pp. 2036-2047
An effective-field theory with correlations has been used to study critical behaviors of a mixed spin-1 and spin-2 Ising system on a honeycomb and square lattices in the absence and presence of a longitudinal magnetic field. The ground-state phase diagram of the model is obtained in the...