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DC Field | Value | Language |
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dc.citation.number | 9 | - |
dc.citation.title | JOURNAL OF APPLIED PHYSICS | - |
dc.citation.volume | 105 | - |
dc.contributor.author | Jo, Wook | - |
dc.contributor.author | Granzow, Torsten | - |
dc.contributor.author | Aulbach, Emil | - |
dc.contributor.author | Roedel, Juergen | - |
dc.contributor.author | Damjanovic, Dragan | - |
dc.date.accessioned | 2023-12-22T08:06:53Z | - |
dc.date.available | 2023-12-22T08:06:53Z | - |
dc.date.created | 2014-10-20 | - |
dc.date.issued | 2009-05 | - |
dc.description.abstract | The mechanism of the giant unipolar strain recently observed in a lead-free piezoceramic, 0.92(Bi0.5Na0.5)TiO3-0.06BaTiO(3)-0.02(K0.5Na0.5)NbO3 [S.-T. Zhang, A. B. Kounga, E. Aulbach, H. Ehrenberg, and J. Rodel, Appl. Phys. Lett. 91, 112906 (2007) was investigated. The validity of the previously proposed mechanism that the high strain comes both from a significant volume change during the field-induced phase transition, from an antiferroelectric to a ferroelectric phase and the domain contribution from the induced ferroelectric phase was examined. Monitoring the volume changes from the simultaneously measured longitudinal and transverse strains on disk-shaped samples showed that the phase transition in this specific material does not involve any notable volume change, which indicates that there is little contribution from a volume change due to the phase transition to the total strain response. Temperature dependent hysteresis measurements on unpoled samples of a nearby ferroelectric composition, 0.93(Bi0.5Na0.5)TiO3-0.06BaTiO(3) -0.01(K0.5Na0.5)NbO3 demonstrated that the origin of the large strain is due to the presence of a nonpolar phase that brings the system back to its unpoled state once the applied electric field is removed, which leads to a large unipolar strain. | - |
dc.identifier.bibliographicCitation | JOURNAL OF APPLIED PHYSICS, v.105, no.9 | - |
dc.identifier.doi | 10.1063/1.3121203 | - |
dc.identifier.issn | 0021-8979 | - |
dc.identifier.scopusid | 2-s2.0-67249118102 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/7434 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=67249118102 | - |
dc.identifier.wosid | 000266263300121 | - |
dc.language | 영어 | - |
dc.publisher | AMER INST PHYSICS | - |
dc.title | Origin of the large strain response in (K0.5Na0.5)NbO3-modified (Bi0.5Na0.5)TiO3-BaTiO3 lead-free piezoceramics | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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