A. V. Svalov, D. S. Neznakhin, A. V. Arkhipov, S. V. Andreev, A. S. Rusalina, A. V. Tebenkov, A. I. Medvedev, I. V. Beketov, G. V. Kurlyandskaya
{"title":"Magnetic and magnetocaloric properties of melt-spun ribbons of GdTbDyHoEr high entropy alloy","authors":"A. V. Svalov, D. S. Neznakhin, A. V. Arkhipov, S. V. Andreev, A. S. Rusalina, A. V. Tebenkov, A. I. Medvedev, I. V. Beketov, G. V. Kurlyandskaya","doi":"10.1007/s00339-025-08316-1","DOIUrl":null,"url":null,"abstract":"<div><p>Melt-spun ribbons of GdTbDyHoEr high-entropy alloy have a single-phase hexagonal-close-packed structure. The maximum value of the magnetic entropy change Δ<i>S</i><sub><i>M</i></sub> for this alloy after rapid quenching increases up to 8.6 J kg<sup>− 1</sup> K<sup>− 1</sup> in the external magnetic field of 5 T at <i>T</i> = 180 K, and the refrigerant capacity <i>RC</i> reaches 340 J kg<sup>− 1</sup> in the external magnetic field of 2 T. The present analysis indicates that the higher values of the magnetic entropy change and the refrigerant capacity for the GdTbDyHoEr melt-spun ribbons are apparently due to their lower effective magnetic anisotropy in comparison with the bulk alloy and more intense response to an external magnetic field. The presented results indicate a way to obtain highly efficient materials for magnetic refrigeration applications.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2025-02-07","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/s00339-025-08316-1","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}
引用次数: 0
Abstract
Melt-spun ribbons of GdTbDyHoEr high-entropy alloy have a single-phase hexagonal-close-packed structure. The maximum value of the magnetic entropy change ΔSM for this alloy after rapid quenching increases up to 8.6 J kg− 1 K− 1 in the external magnetic field of 5 T at T = 180 K, and the refrigerant capacity RC reaches 340 J kg− 1 in the external magnetic field of 2 T. The present analysis indicates that the higher values of the magnetic entropy change and the refrigerant capacity for the GdTbDyHoEr melt-spun ribbons are apparently due to their lower effective magnetic anisotropy in comparison with the bulk alloy and more intense response to an external magnetic field. The presented results indicate a way to obtain highly efficient materials for magnetic refrigeration applications.
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.