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Mixed Spin-2 and Spin-3/2 Blume-Emery-Griffiths (BEG) Model on the Bethe Lattice
Institute of Mathematic and Physical Sciences (IMSP), Dangbo, Republic of Benin
Department of Physics, University of Abomey-Calavi, Cotonou, Republic of Benin
Institute of Mathematic and Physical Sciences (IMSP), Dangbo, Republic of Benin
- 1 Institute of Mathematic and Physical Sciences (IMSP), Dangbo, Republic of Benin
- 2 Department of Physics, University of Abomey-Calavi, Cotonou, Republic of Benin
- 3 Institute of Mathematic and Physical Sciences (IMSP), Dangbo, Republic of Benin
World Journal of Condensed Matter Physics·Volume 05 (2015)·Pages 187–200·Published 27 July 2015·DOI10.4236/wjcmp.2015.53020
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Abstract
The mixed spin-2 and spin-3/2 Blume-Emery-Griffiths (BEG) Ising ferrimagnetic system is studied by the Bethe lattice approach. The ground-state phase diagram is constructed. The influence of the crystal-field and the biquadratic interactions among neighboring spins on the thermal behaviors of the system is singled out. The system displays very rich critical behaviors with the existence of tricritical points. Compensation points where the global magnetization of the system vanishes have been detected for appropriate values of the system parameters.
KeywordsBEG ModelTricritical PointCompensation PointsBethe Lattice
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