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<p>This work investigates the magnetic and magnetocaloric characteristics of a square-based Ising nanowire using Monte Carlo simulations and the Metropolis technique. Ground-state diagrams are explored to identify ferrimagnetic behavior. Subsequently, observations from the ground-state diagrams are confirmed through analysis of the reduced compensation temperature as a function of the interaction parameters p, q, and the reduced crystal field d. Additionally, it appears that only the crystal field (d) significantly influences the critical temperature of the system. Examining the hysteresis loops shows that the coercive field Hc decreases as the temperature rises, disappearing at the critical temperature Tc. Finally, concerning the magnetocaloric effect, we observed that the relative cooling power (RCP) grows linearly with the external magnetic field strength, suggesting that this type of structure is an excellent candidate for magnetic refrigeration applications.</p>

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Magnetocaloric effect, magnetic properties and compensation behaviors of a ferrimagnetic Ising nanowire with a core–shell structure (1, 3/2): Monte Carlo study

  • 期刊论文

  • 发表日期：

    2026年5月2日

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  • R. Lahlimi,
  • A. Lahbibi,
  • A. Elidrysy,
  • M. Choubi,
  • S. Harir,
  • Y. Lghazi

摘要

This work investigates the magnetic and magnetocaloric characteristics of a square-based Ising nanowire using Monte Carlo simulations and the Metropolis technique. Ground-state diagrams are explored to identify ferrimagnetic behavior. Subsequently, observations from the ground-state diagrams are confirmed through analysis of the reduced compensation temperature as a function of the interaction parameters p, q, and the reduced crystal field d. Additionally, it appears that only the crystal field (d) significantly influences the critical temperature of the system. Examining the hysteresis loops shows that the coercive field Hc decreases as the temperature rises, disappearing at the critical temperature Tc. Finally, concerning the magnetocaloric effect, we observed that the relative cooling power (RCP) grows linearly with the external magnetic field strength, suggesting that this type of structure is an excellent candidate for magnetic refrigeration applications.