Effect of sample-preparation history on domain and crystal structure in a relaxor-ferroelectric single crystal
- Authors
- Jeon, Jongchul; Oh, Soong Ju; Kim, Kyou-Hyun
- Issue Date
- 1-4월-2020
- Publisher
- INT UNION CRYSTALLOGRAPHY
- Keywords
- relaxor-based ferrroelectrics; sample preparation; symmetry investigation; symmetry quantification; convergent-beam electron diffraction
- Citation
- JOURNAL OF APPLIED CRYSTALLOGRAPHY, v.53, pp.381 - 386
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF APPLIED CRYSTALLOGRAPHY
- Volume
- 53
- Start Page
- 381
- End Page
- 386
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/56670
- DOI
- 10.1107/S1600576720001235
- ISSN
- 0021-8898
- Abstract
- The effect of sample-preparation procedures on single crystals of the relaxor-based ferroelectric Pb(Mg1/3Nb2/3)O-3-31%PbTiO3 (PMN-31 %PT) has been investigated. PMN-31%PT single crystals were treated using the general sample-preparation methods of mechanical polishing and Ar-ion milling. Similar domain structures were artificially induced in both the mechanically polished and the Ar-ion milled PMN-31 %PT; this domain structure was not observed in the original PMN-31 %PT single crystal. Macroscopic structural investigation using X-ray diffraction showed that these general sample-preparation methods induce a structural change from a monoclinic-like to a tetragonal-like structure. A study of local symmetry also indicated that Ar-ion milling induces a structural change from the original monoclinic-like crystal symmetry to a tetragonal-like crystal symmetry. It is also demonstrated that the conventional sample-preparation methods induce a poling-like effect on PMN-31 %PT.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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