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DC Field | Value | Language |
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dc.citation.startPage | 168378 | - |
dc.citation.title | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | - |
dc.citation.volume | 539 | - |
dc.contributor.author | Phan, T. L. | - |
dc.contributor.author | Manh, T. V. | - |
dc.contributor.author | Park, Hyeong‐Ryeol | - |
dc.contributor.author | Lee, B. W. | - |
dc.contributor.author | Yu, S. C. | - |
dc.contributor.author | Yang, H. | - |
dc.contributor.author | Li, C. | - |
dc.contributor.author | Piao, H. -G. | - |
dc.contributor.author | Zhang, Y. D. | - |
dc.contributor.author | Manh, D. H. | - |
dc.contributor.author | Dang, N. T. | - |
dc.date.accessioned | 2023-12-21T14:52:37Z | - |
dc.date.available | 2023-12-21T14:52:37Z | - |
dc.date.created | 2021-11-22 | - |
dc.date.issued | 2021-12 | - |
dc.description.abstract | The magnetocaloric effect in the R-3c rhombohedral La1-xBaxCoO3 samples (x = 0.2-0.4) prepared by the mechanical milling and ceramic methods has been studied through the dc magnetization measurements. The results have revealed the magnetic phase-transition temperature (T-C) changing from 185 to about 200 K when x changes from 0.2 to 0.4. Around T-C, the samples show a large change in the magnetic entropy (Delta S-m). The value of.Sm depends on both x and the applied-field magnitude. Under an applied field H = 30 kOe, the maximum magnetic-entropy changes are about 1.1, 1.7 and 1.6 J/Kg center dot K for x = 0.2, 0.3 and 0.4, respectively, corresponding to the relative cooling power ranging between 63 and 73 J/kg. Our studies have also found La1-xBaxCoO3 exhibiting a second-order phase transition and short-range magnetic order. We suggest that short-range order is related to the interaction competition between two ferromagnetic and anti-ferromagnetic phases due to the coexistence of Co3+ and Co4+ ions. | - |
dc.identifier.bibliographicCitation | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.539, pp.168378 | - |
dc.identifier.doi | 10.1016/j.jmmm.2021.168378 | - |
dc.identifier.issn | 0304-8853 | - |
dc.identifier.scopusid | 2-s2.0-85112752215 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/54862 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0304885321006545?via%3Dihub | - |
dc.identifier.wosid | 000709701400002 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER | - |
dc.title | Magnetocaloric effect in Ba-doped LaCoO3 cobaltites showing second-order phase transitions | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Materials Science; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Perovskite-type cobaltites | - |
dc.subject.keywordAuthor | Magnetocaloric effect | - |
dc.subject.keywordAuthor | Magnetic order | - |
dc.subject.keywordPlus | MAGNETIC-PROPERTIES | - |
dc.subject.keywordPlus | CRITICAL-BEHAVIOR | - |
dc.subject.keywordPlus | LA1-XSRXCOO3 | - |
dc.subject.keywordPlus | ORDER | - |
dc.subject.keywordPlus | SPIN | - |
dc.subject.keywordPlus | POLYCRYSTALLINE | - |
dc.subject.keywordPlus | LA1-XCAXMNO3 | - |
dc.subject.keywordPlus | DISTORTION | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | SYSTEM | - |
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