Assaad Elouafi, Sara Ezairi, Fatima Lmai, Abdeslam Tizliouine
{"title":"Cryogenic magnetocaloric properties in Xenotime-type HoPO4","authors":"Assaad Elouafi, Sara Ezairi, Fatima Lmai, Abdeslam Tizliouine","doi":"10.1007/s12043-024-02831-1","DOIUrl":null,"url":null,"abstract":"<div><p>Holmium orthophosphate (HoPO<sub>4</sub>) was prepared using the solid-state method. The XRD pattern analyses have proved that HoPO<sub>4</sub> crystallises in the tetragonal structure (I4<sub>1</sub><span>\\(/\\)</span>amd). The maximum magnetic entropy change (−<span>\\(\\Delta {S}_{\\text{M}}^{\\text{max}})\\)</span> and the relative cooling power (RCP) reach 34.5 J<span>\\(/\\)</span>kg·K and 414.84 J kg<sup>−1</sup> at 2.4 K under a magnetic field of 50 kOe, respectively. The lowest transition temperature and the large magnetocaloric effect (MCE) showed that HoPO<sub>4</sub> is a potential candidate for superfluid helium magnetic refrigeration applications.\n</p></div>","PeriodicalId":743,"journal":{"name":"Pramana","volume":"98 4","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pramana","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1007/s12043-024-02831-1","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Holmium orthophosphate (HoPO4) was prepared using the solid-state method. The XRD pattern analyses have proved that HoPO4 crystallises in the tetragonal structure (I41\(/\)amd). The maximum magnetic entropy change (−\(\Delta {S}_{\text{M}}^{\text{max}})\) and the relative cooling power (RCP) reach 34.5 J\(/\)kg·K and 414.84 J kg−1 at 2.4 K under a magnetic field of 50 kOe, respectively. The lowest transition temperature and the large magnetocaloric effect (MCE) showed that HoPO4 is a potential candidate for superfluid helium magnetic refrigeration applications.
期刊介绍：
Pramana - Journal of Physics is a monthly research journal in English published by the Indian Academy of Sciences in collaboration with Indian National Science Academy and Indian Physics Association. The journal publishes refereed papers covering current research in Physics, both original contributions - research papers, brief reports or rapid communications - and invited reviews. Pramana also publishes special issues devoted to advances in specific areas of Physics and proceedings of select high quality conferences.
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