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Dynamic magnetic properties of L10 structure like quadrangular frustum pyramid nanoisland in an oscillating magnetic field

Author

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  • Liang, Geng
  • Zeng, Bili
  • Zhang, Wei

Abstract

Based on Monte Carlo simulations, we investigated the dynamic magnetic properties of a mixed-spin (5/2, 1/2) nanoisland with an L10-ordered quadrangular frustum pyramid structure. We studied the influences of an oscillating magnetic field, exchange couplings, and magneto-crystal anisotropy on the system’s dynamic magnetic and thermodynamic properties. We obtained various characteristic curves of the dynamic order parameter, susceptibility, internal energy, and hysteresis loops. To elucidate the impact of these parameters on the phase transition, we constructed corresponding phase diagrams. Notably, our results reveal a linear dependence of the critical temperature, hysteresis loop area, and coercivity on the exchange coupling (Jab). Interestingly, the angular frequency ω of the oscillating external magnetic field can linearly modulate the critical temperature without significantly altering the hysteresis loop area.

Suggested Citation

  • Liang, Geng & Zeng, Bili & Zhang, Wei, 2026. "Dynamic magnetic properties of L10 structure like quadrangular frustum pyramid nanoisland in an oscillating magnetic field," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 689(C).
    • Handle: RePEc:eee:phsmap:v:689:y:2026:i:c:s0378437126001743
    DOI: 10.1016/j.physa.2026.131438
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    JEL classification:

    • L10 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - General

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