PHASE-TRANSITION OF THE BOND-DILUTED SPIN-1 TRANSVERSE ISING-MODEL WITH CRYSTAL-FIELD INTERACTION

The quenched bond-diluted spin-1 transverse Ising model with crystal field interaction is studied within the framework of an effective field theory by Honmura and Kaneyoshi. In particular, the phase diagrams containing the first and second order phase transitions and the tricritical point are given for the honeycomb lattice. We find that the reentrant phenomenon of second-order occurs for the system in the appropriate region, especially near the critical region where the tricritical behavior disappears. Finally, we also give the condition for the occurrence of the tricritical point.