The spin-(1,12,1) sandwiched trilayer Bethe lattices

Erhan Albayrak and Aynur Aker

Physica A: Statistical Mechanics and its Applications, 2010, vol. 389, issue 24, 5677-5688

Abstract: The Ising model for the spin-(1,12,1) 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.

Keywords: Bethe lattice; Trilayer; Reentrant; Spin; Tricritical; Bicritical (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:389:y:2010:i:24:p:5677-5688

DOI: 10.1016/j.physa.2010.08.044

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