PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, cilt.389, sa.24, ss.5677-5688, 2010 (SCI-Expanded)
The Ising model for the spin-(1, 1/2, 1) sandwiched trilayer Bethe lattices is investigated in terms of the recursion relations with either ferromagnetic (FM) or antiferromagnetic (AFM) type of bilinear interactions between the nearest-neighbor (NN) spins. In addition to the ground-state (GS) phase diagrams, the thermal variations of the order-parameters, spin spin correlation functions and free energies are studied; therefore, different topological temperature-dependent phase diagrams are obtained. It was found that the system exhibits second- and first-order phase transitions. The bicritical, critical end and multicritical points, and the stable and unstable tricritical points are observed in addition to the reentrant behavior for the coordination numbers q = 3,4 and 6. (C) 2010 Elsevier B.V. All rights reserved.