Article ID Journal Published Year Pages File Type
977682 Physica A: Statistical Mechanics and its Applications 2006 12 Pages PDF
Abstract

Effect of uniaxial single-ion anisotropy upon magnetic properties of a mixed spin-1/2 and spin-S   (S⩾1S⩾1) Ising model on a bathroom tile (4–8) lattice is examined within the framework of an exact star-triangle mapping transformation. Particular attention is focused on the phase diagrams established for several values of the quantum spin number S. It is shown that the mixed-spin bathroom tile lattice exhibits very similar phase boundaries as the mixed-spin honeycomb lattice whose critical points are merely slightly enhanced with respect to the former ones. The influence of uniaxial single-ion anisotropy upon the total magnetization vs. temperature dependence is particularly investigated as well.

Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
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