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Abstract The phase transition properties of Blume–Emery–Griffiths (BEG) model for the spin-3/2 system are investigated on the Bethe lattice (BL) when the system is under the effect of both random… Click to show full abstract
Abstract The phase transition properties of Blume–Emery–Griffiths (BEG) model for the spin-3/2 system are investigated on the Bethe lattice (BL) when the system is under the effect of both random crystal field (D) and biquadratic exchange interaction (K). These randomization effects are either turned on with probability 1 − p (q) or turned off with probability p ( 1 − q ) for D and K, respectively. The phase diagrams are obtained on the (K/J, kT/J) and (D/J, kT/J) planes for given values of p and q when z = 3.0 corresponding to honeycomb lattice. Both attractive (K > 0) and repulsive (K
Journal Title: Chinese Journal of Physics
Year Published: 2017
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