MnFeP2/3Si1/3 中磁致效应现象学模型的有效性

IF 4.4 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Results in Physics Pub Date : 2025-04-01 DOI:10.1016/j.rinp.2025.108231

Ahmed R. Galaly , Tahani R. Aldhafeeri , Sameh M. Elghnam , Mahmoud A. Hamad

{"title":"MnFeP2/3Si1/3 中磁致效应现象学模型的有效性","authors":"Ahmed R. Galaly , Tahani R. Aldhafeeri , Sameh M. Elghnam , Mahmoud A. Hamad","doi":"10.1016/j.rinp.2025.108231","DOIUrl":null,"url":null,"abstract":"<div><div>Assessing the validity of the phenomenological model (PM) for the magnetocaloric effect (MCE) in MnFeP<sub>2/3</sub>Si<sub>1/3</sub> is the aim of this study. Our work confirms PM for conventional MCE by simulating the MCE of MnFeP<sub>2/3</sub>Si<sub>1/3</sub> at temperatures between 230 K and 310 K. Interestingly, there is a good degree of precision across the whole temperature range in the agreement between the simulated magnetic entropy change (10.1 J/kg.K) and the reported one. Additionally, MnFeP<sub>2/3</sub>Si<sub>1/3</sub>′s relative cooling power is evaluated to be 97 J/kg, and heat capacity change characterization is investigated. By reducing the time and effort required to calculate and measure MCE, these results imply that PM is a trustworthy model for investigating MCE in the sharp magnetic transition. Consequently, the PM is very useful for estimating the MCE of magnets, as the MnFeP<sub>2/3</sub>Si<sub>1/3</sub> sample has a sharp magnetic transition. Consequently, we believe that the PM can also be used for predicting MCE parameters for any magnetic transition.</div></div>","PeriodicalId":21042,"journal":{"name":"Results in Physics","volume":"73 ","pages":"Article 108231"},"PeriodicalIF":4.4000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Validity of the phenomenological model for magnetocaloric effects in MnFeP2/3Si1/3\",\"authors\":\"Ahmed R. Galaly , Tahani R. Aldhafeeri , Sameh M. Elghnam , Mahmoud A. Hamad\",\"doi\":\"10.1016/j.rinp.2025.108231\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Assessing the validity of the phenomenological model (PM) for the magnetocaloric effect (MCE) in MnFeP<sub>2/3</sub>Si<sub>1/3</sub> is the aim of this study. Our work confirms PM for conventional MCE by simulating the MCE of MnFeP<sub>2/3</sub>Si<sub>1/3</sub> at temperatures between 230 K and 310 K. Interestingly, there is a good degree of precision across the whole temperature range in the agreement between the simulated magnetic entropy change (10.1 J/kg.K) and the reported one. Additionally, MnFeP<sub>2/3</sub>Si<sub>1/3</sub>′s relative cooling power is evaluated to be 97 J/kg, and heat capacity change characterization is investigated. By reducing the time and effort required to calculate and measure MCE, these results imply that PM is a trustworthy model for investigating MCE in the sharp magnetic transition. Consequently, the PM is very useful for estimating the MCE of magnets, as the MnFeP<sub>2/3</sub>Si<sub>1/3</sub> sample has a sharp magnetic transition. Consequently, we believe that the PM can also be used for predicting MCE parameters for any magnetic transition.</div></div>\",\"PeriodicalId\":21042,\"journal\":{\"name\":\"Results in Physics\",\"volume\":\"73 \",\"pages\":\"Article 108231\"},\"PeriodicalIF\":4.4000,\"publicationDate\":\"2025-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Results in Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2211379725001251\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Results in Physics","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2211379725001251","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Validity of the phenomenological model for magnetocaloric effects in MnFeP2/3Si1/3

Assessing the validity of the phenomenological model (PM) for the magnetocaloric effect (MCE) in MnFeP_2/3Si_1/3 is the aim of this study. Our work confirms PM for conventional MCE by simulating the MCE of MnFeP_2/3Si_1/3 at temperatures between 230 K and 310 K. Interestingly, there is a good degree of precision across the whole temperature range in the agreement between the simulated magnetic entropy change (10.1 J/kg.K) and the reported one. Additionally, MnFeP_2/3Si_1/3′s relative cooling power is evaluated to be 97 J/kg, and heat capacity change characterization is investigated. By reducing the time and effort required to calculate and measure MCE, these results imply that PM is a trustworthy model for investigating MCE in the sharp magnetic transition. Consequently, the PM is very useful for estimating the MCE of magnets, as the MnFeP_2/3Si_1/3 sample has a sharp magnetic transition. Consequently, we believe that the PM can also be used for predicting MCE parameters for any magnetic transition.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

期刊介绍： Results in Physics is an open access journal offering authors the opportunity to publish in all fundamental and interdisciplinary areas of physics, materials science, and applied physics. Papers of a theoretical, computational, and experimental nature are all welcome. Results in Physics accepts papers that are scientifically sound, technically correct and provide valuable new knowledge to the physics community. Topics such as three-dimensional flow and magnetohydrodynamics are not within the scope of Results in Physics. Results in Physics welcomes three types of papers: 1. Full research papers 2. Microarticles: very short papers, no longer than two pages. They may consist of a single, but well-described piece of information, such as: - Data and/or a plot plus a description - Description of a new method or instrumentation - Negative results - Concept or design study 3. Letters to the Editor: Letters discussing a recent article published in Results in Physics are welcome. These are objective, constructive, or educational critiques of papers published in Results in Physics. Accepted letters will be sent to the author of the original paper for a response. Each letter and response is published together. Letters should be received within 8 weeks of the article''s publication. They should not exceed 750 words of text and 10 references.