Phase transition and magnetic properties of a bond-diluted mixed spin-1 and spin- Ising model with the uniaxial and biaxial single-ion anisotropy

Abstract

The effective-field theory with a probability distribution technique that accounts for the self-spin correlation functions is used to study the phase diagrams and magnetic properties of a bond-diluted mixed spin- and spin-1 Ising model with the uniaxial and biaxial single-ion anisotropy on a simple cubic structure. It is found that the phase diagrams of the system can exhibit re-entrant phenomena for certain values of the concentration p and uniaxial and biaxial single-ion anisotropy, D0/J, Dx/J and Dy/J. We have also studied the effect of these parameters on the existence of the tricritical behavior.