Abstract

The mixed spin-1 and spin- 3 2 Ising ferromagnetic ( J>0) system with two crystal-field interactions on honeycomb lattice ( z=3) has been studied by using the effective-field theory with correlations. The phase diagrams and the thermal behaviors of magnetizations are given. The results show that the tricritical behaviors and the re-entrant phenomena may appear in certain ranges of the two crystal-field interactions.

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