Dynamic hysteresis properties of multilayer square lattices modeled by the spin-7/2 Ising system under oscillating magnetic fields

IF 1.7 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

The European Physical Journal B Pub Date : 2025-09-20 DOI:10.1140/epjb/s10051-025-01039-5

Mehmet Batı

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Abstract

We investigate the magnetic hysteresis characteristics of a multilayer square lattice in the presence of an oscillating magnetic field using the spin-7/2 Ising model. The system reaction to changing system characteristics is investigated using the dynamic mean field approximation with Glauber-type stochastic dynamics. We investigate the dynamic hysteresis properties of the system with dependence on the crystal field parameter, temperature, frequency of the oscillating magnetic field, and the exchange interaction parameters. Symmetric hysteresis loops are formed only within specific ranges of these parameters. In particular, the computation of remanence and coercivity is emphasized, which is important for the magnetic memory and switching properties of the system. This work contributes to a better understanding of the hysteresis processes in complex magnetic systems, with possible applications in magnetic memory devices and related technologies.

Graphical Abstract

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振荡磁场下自旋-7/2 Ising系统多层方格的动态迟滞特性

利用自旋7/2 Ising模型研究了振荡磁场作用下多层方形晶格的磁滞特性。采用glauber型随机动力学的动态平均场近似，研究了系统对系统特性变化的反应。研究了系统的动态迟滞特性与晶体场参数、温度、振荡磁场频率和交换相互作用参数的关系。对称迟滞回路仅在这些参数的特定范围内形成。特别强调了剩磁和矫顽力的计算，这对系统的磁记忆和开关性能至关重要。这项工作有助于更好地理解复杂磁系统中的磁滞过程，并可能在磁存储器件和相关技术中得到应用。图形抽象

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