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Phase transition in the spin-3/2 Blume–Emery–Griffiths model with antiferromagnetic second neighbor interactions

Author

Listed:
  • Yezli, M.
  • Bekhechi, S.
  • Hontinfinde, F.
  • EZ-Zahraouy, H.

Abstract

Two nonperturbative methods such as Monte-Carlo simulation (MC) and Transfer-Matrix Finite-Size-Scaling calculations (TMFSS) have been used to study the phase transition of the spin-3/2 ​Blume–Emery–Griffiths model (BEG) with quadrupolar and antiferromagnetic next-nearest-neighbor exchange interactions. Ground state and finite temperature phase diagrams are obtained by means of these two methods. New degenerate phases are found and only second order phase transitions occur for all values of the parameter interactions. No sign of the intermediate phase is found from both methods. Critical exponents are also obtained from TMFSS calculations. Ising criticality and nonuniversal behaviors are observed depending on the strength of the second neighbor interaction.

Suggested Citation

  • Yezli, M. & Bekhechi, S. & Hontinfinde, F. & EZ-Zahraouy, H., 2016. "Phase transition in the spin-3/2 Blume–Emery–Griffiths model with antiferromagnetic second neighbor interactions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 448(C), pages 81-90.
    • Handle: RePEc:eee:phsmap:v:448:y:2016:i:c:p:81-90
    DOI: 10.1016/j.physa.2015.12.097
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