Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.number | 4 | - |
dc.citation.startPage | 046101 | - |
dc.citation.title | MATERIALS RESEARCH EXPRESS | - |
dc.citation.volume | 7 | - |
dc.contributor.author | Dao Son Lam | - |
dc.contributor.author | Nguyen Thi Dung | - |
dc.contributor.author | Tran Dang Thanh | - |
dc.contributor.author | Dinh Chi Linh | - |
dc.contributor.author | Nan, Wen-Zhe | - |
dc.contributor.author | Yu, Seong-Cho | - |
dc.date.accessioned | 2023-12-21T17:42:04Z | - |
dc.date.available | 2023-12-21T17:42:04Z | - |
dc.date.created | 2020-05-13 | - |
dc.date.issued | 2020-04 | - |
dc.description.abstract | The magnetocaloric effect and the critical behavior near the first to second-order phase transition of La0.7Ca0.3-xSnxMnO3 compounds (with x = 0-0.04), which were prepared by a conventional solid state reaction method, have been investigated. With increasing Sn-doping, a systematic decrease in the Curie temperature (T-C) and the magnetic entropy change (Delta S-m) are observed. We also pointed out that the width and the order of the magnetic phase transition in La0.7Ca0.3-xSnxMnO3 compounds can be easily modified by changing Sn concentration. The Banerjee criterion suggests that the Sn-undoped sample (x = 0) undergoes a first-order phase transition (FOPT). Meanwhile, Sn-doped samples (x = 0.02 and 0.04) undergo a second-order phase transition (SOPT). Based on the Kouvel-Fisher method and the critical isotherm analyses, we have determined the values of the critical exponents (beta, gamma, and delta) and T-C for two SOPT samples. The results obtained for x = 0.02 sample are beta = 0.218, gamma = 0.858, and delta = 4.717, which are close to those expected for the tricritical mean field theory. Whereas, beta = 0.468, gamma = 1.095 and delta = 3.315 obtained for x = 0.04 sample are close to those expected for the mean field theory. This suggests that the presence of Sn favors establishing the ferromagnetic long-range interactions in the sample. | - |
dc.identifier.bibliographicCitation | MATERIALS RESEARCH EXPRESS, v.7, no.4, pp.046101 | - |
dc.identifier.doi | 10.1088/2053-1591/ab845b | - |
dc.identifier.issn | 2053-1591 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/32072 | - |
dc.identifier.url | https://iopscience.iop.org/article/10.1088/2053-1591/ab845b | - |
dc.identifier.wosid | 000528061200001 | - |
dc.language | 영어 | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | Magnetocaloric effect and critical behavior near the first to second-order phase transition of La0.7Ca0.3-xSnxMnO3 compounds | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | magnetocaloric effect | - |
dc.subject.keywordAuthor | critical behavior | - |
dc.subject.keywordAuthor | ferromagnetic interactions | - |
dc.subject.keywordPlus | MAGNETOTRANSPORT PROPERTIES | - |
dc.subject.keywordPlus | X=0 | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.