{"title":"交替多层克库伦的补偿温度和滞后环","authors":"Xiao-Han Zhang, Ji Liang, Wei Wang, Bo-Chen Li","doi":"10.1007/s00339-025-08402-4","DOIUrl":null,"url":null,"abstract":"<div><p>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. <i>D</i><sub><i>a</i></sub> and <i>D</i><sub><i>b</i></sub> represent the crystal fields of sublattice a and b, respectively. First, we used the ground state phase diagram to show all possible spin configurations. <i>D</i><sub><i>a</i></sub> causes the system to appear in 8 spin configurations. In the study of magnetization, changing <i>D</i><sub><i>b</i></sub> and <i>J</i><sub><i>ab</i></sub> 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 <i>T</i><sub><i>comp</i></sub> and phase transition temperature <i>T</i><sub><i>C</i></sub>. <i>T</i><sub><i>C</i></sub> is more susceptible to the change of <i>D</i><sub><i>b</i></sub> and the exchange coupling <i>J</i><sub><i>ab</i></sub>. In addition, it can be observed that the triple-loop hysteresis characteristics frequently manifested.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 4","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Compensation temperatures and hysteresis loops in a kekulene with alternate multilayer\",\"authors\":\"Xiao-Han Zhang, Ji Liang, Wei Wang, Bo-Chen Li\",\"doi\":\"10.1007/s00339-025-08402-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>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. <i>D</i><sub><i>a</i></sub> and <i>D</i><sub><i>b</i></sub> represent the crystal fields of sublattice a and b, respectively. First, we used the ground state phase diagram to show all possible spin configurations. <i>D</i><sub><i>a</i></sub> causes the system to appear in 8 spin configurations. In the study of magnetization, changing <i>D</i><sub><i>b</i></sub> and <i>J</i><sub><i>ab</i></sub> 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 <i>T</i><sub><i>comp</i></sub> and phase transition temperature <i>T</i><sub><i>C</i></sub>. <i>T</i><sub><i>C</i></sub> is more susceptible to the change of <i>D</i><sub><i>b</i></sub> and the exchange coupling <i>J</i><sub><i>ab</i></sub>. In addition, it can be observed that the triple-loop hysteresis characteristics frequently manifested.</p></div>\",\"PeriodicalId\":473,\"journal\":{\"name\":\"Applied Physics A\",\"volume\":\"131 4\",\"pages\":\"\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2025-03-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Physics A\",\"FirstCategoryId\":\"4\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00339-025-08402-4\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics A","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1007/s00339-025-08402-4","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Compensation temperatures and hysteresis loops in a kekulene with alternate multilayer
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. Da and Db represent the crystal fields of sublattice a and b, respectively. First, we used the ground state phase diagram to show all possible spin configurations. Da causes the system to appear in 8 spin configurations. In the study of magnetization, changing Db and Jab 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 Tcomp and phase transition temperature TC. TC is more susceptible to the change of Db and the exchange coupling Jab. In addition, it can be observed that the triple-loop hysteresis characteristics frequently manifested.
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.
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