Compensation temperatures and hysteresis loops in a kekulene with alternate multilayer

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Applied Physics A Pub Date : 2025-03-15 DOI:10.1007/s00339-025-08402-4

Xiao-Han Zhang, Ji Liang, Wei Wang, Bo-Chen Li

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Abstract

The present Monte Carlo study employed a ferrimagnetic mixed-spin Ising model to explore the magnetic properties of a kekulene-like structure with alternate multilayers. We investigated the temperature dependence of the magnetization, magnetic susceptibility, energy, specific heat, and entropy for kekulene-like structure. D_a and D_b represent the crystal fields of sublattice a and b, respectively. First, we used the ground state phase diagram to show all possible spin configurations. D_a causes the system to appear in 8 spin configurations. In the study of magnetization, changing D_b and J_ab causes the magnetization to exhibit five saturation values. In addition, we found compensation points. The study of phase diagrams illustrates that decreasing exchange coupling and increasing crystal field can improve the compensation temperature T_comp and phase transition temperature T_C. T_C is more susceptible to the change of D_b and the exchange coupling J_ab. In addition, it can be observed that the triple-loop hysteresis characteristics frequently manifested.

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交替多层克库伦的补偿温度和滞后环

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来源期刊

Applied Physics A 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.40%

发文量

964

审稿时长

38 days

期刊介绍： Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.