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DC Field | Value | Language |
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dc.citation.startPage | SGGA06 | - |
dc.citation.title | JAPANESE JOURNAL OF APPLIED PHYSICS | - |
dc.citation.volume | 58 | - |
dc.contributor.author | Aso, Taro | - |
dc.contributor.author | Fujii, Yasuhiro | - |
dc.contributor.author | Koreeda, Akitoshi | - |
dc.contributor.author | Oh, Soo Han | - |
dc.contributor.author | Lee, Jeong Woo | - |
dc.contributor.author | Ko, Jae-Hyeon | - |
dc.contributor.author | Hong, Chang-Hyo | - |
dc.contributor.author | Jo, Wook | - |
dc.date.accessioned | 2023-12-21T18:59:55Z | - |
dc.date.available | 2023-12-21T18:59:55Z | - |
dc.date.created | 2019-08-02 | - |
dc.date.issued | 2019-07 | - |
dc.description.abstract | Brillouin spectra of highly-ordered Pb(Sc1/2Ta1/2)O-3 (PST-O) and highly-disordered PST (PST-D) were measured over a wide temperature range. The frequency of the longitudinal acoustic (LA) phonon mode of PST-O showed a sharp anomaly corresponding to the sharp maxima of the dielectric permittivity, whereas that of PST-D exhibits a broad anomaly. The remarkable softening of LA phonon was observed below T* = 500 K, which indicates the occurrence of a piezoelectric coupling and/or electrostrictive coupling due to the appearance of non-centrosymmetric polar nanoregions below T*. The relaxation time of the LA phonon of PST-O shows a critical slowing down for order-disorder phase transition, while that of PST-D exhibits a stretched slowing down due to random electric fields related to B-site randomness. | - |
dc.identifier.bibliographicCitation | JAPANESE JOURNAL OF APPLIED PHYSICS, v.58, pp.SGGA06 | - |
dc.identifier.doi | 10.7567/1347-4065/ab0bae | - |
dc.identifier.issn | 0021-4922 | - |
dc.identifier.scopusid | 2-s2.0-85072953551 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/27234 | - |
dc.identifier.url | https://iopscience.iop.org/article/10.7567/1347-4065/ab0bae | - |
dc.identifier.wosid | 000475287400010 | - |
dc.language | 영어 | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | Acoustic phonon dynamics of Pb(Sc1/2Ta1/2)O-3 ceramics studied by Brillouin scattering spectroscopy | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalResearchArea | Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.subject.keywordPlus | PHASE-TRANSITION | - |
dc.subject.keywordPlus | RELAXOR | - |
dc.subject.keywordPlus | DISORDER | - |
dc.subject.keywordPlus | BEHAVIOR | - |
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