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Effect of odd parameter on phase diagrams and hysteresis features in a 2D kinetic spin- 1 system

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  • Ertaş, M.
  • Batı, M.

Abstract

In this work, the dynamic magnetic characteristics of the spin-1 Blume-Emery-Griffiths (BEG) model under a time-varying magnetic field with odd parameter (dipolar-quadrupolar) interactions are investigated. We studied the system's hysteresis behavior and phase transitions using Glauber-type stochastic dynamics and a mean-field technique. The dynamic phase diagrams are constructed in the temperature-magnetic field (T,h), dipolar-quadrupolar interaction parameter-temperature (l,T), and crystal field parameter-temperature (d,T) planes, revealing the existence of ferromagnetic (F), paramagnetic (D), and ferroquadrupolar (FQ) phases. At low l values, mixed phases are observed, however, as l increases, these mixed phases disappear, resulting in distinct phase boundaries and a smaller FQ phase region. Additionally, the system exhibits a dynamic tricritical point, a multicritical point (A), a critical end point (E), a bicritical point (B), and a zero temperature critical point (Z). Dynamic magnetic hysteresis curve analysis reveals asymmetric behavior in the ferromagnetic phase and symmetric behavior in the paramagnetic phase, with larger l values leading to enhanced remanence and coercivity. We demonstrate that the dipolar-quadrupolar interaction significantly affects the dynamic magnetic properties of the system, leading to the emergence of various magnetic phases. Our results provide new insights into the dynamic magnetic properties of magnetic materials.

Suggested Citation

  • Ertaş, M. & Batı, M., 2025. "Effect of odd parameter on phase diagrams and hysteresis features in a 2D kinetic spin- 1 system," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 669(C).
    • Handle: RePEc:eee:phsmap:v:669:y:2025:i:c:s0378437125002882
    DOI: 10.1016/j.physa.2025.130636
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    References listed on IDEAS

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    1. Temirci, Cabir & Kökçe, Ali & Keskin, Mustafa, 1996. "Equilibrium properties of a spin-1 Ising system with bilinear, biquadratic and odd interactions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 231(4), pages 673-686.
    2. T. D. Oke & S. B. Ogou & F. Hontinfinde & K. Boukheddaden, 2022. "Emergence of multi-stability and limit cycles in ferromagnetic spin-crossover solids under an oscillating magnetic-field: dynamic mean-field study," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 95(6), pages 1-15, June.
    3. Osman Canko & Ümi̇t Temi̇zer & Mustafa Keski̇n, 2006. "Dynamic Phase Transition In The Kinetic Blume-Emery-Griffiths Model In An Oscillating External Field," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 17(12), pages 1717-1737.
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