Mapping the structural transitions controlled by the trilinear coupling in Ca3- xSr x Ti2O7
DC Field | Value | Language |
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dc.contributor.author | Marie Kratochvilova | - |
dc.contributor.author | Fei-Ting Huang | - |
dc.contributor.author | Maria-Teresa Fernandez Diaz | - |
dc.contributor.author | Milan Klicpera | - |
dc.contributor.author | Sarah J. Day | - |
dc.contributor.author | Stephen P. Thompson | - |
dc.contributor.author | Yoon-Seok Oh | - |
dc.contributor.author | Bin Gao | - |
dc.contributor.author | Sang-Wook Cheong | - |
dc.contributor.author | Je-Geun Park | - |
dc.date.available | 2019-09-04T06:06:26Z | - |
dc.date.created | 2019-07-23 | - |
dc.date.issued | 2019-06 | - |
dc.identifier.issn | 0021-8979 | - |
dc.identifier.uri | https://pr.ibs.re.kr/handle/8788114/6099 | - |
dc.description.abstract | © 2019 Author(s).We present the results of the high-temperature neutron and x-ray diffraction experiments on the Ca3-xSrxTi2O7 (x = 0.5, 0.8, 0.85, 0.9) compounds. The ferro- to paraelectric transition in these hybrid improper ferroelectric materials arises from the so-called trilinear coupling. Depending on the strontium content, various structures and phase transitions, different from theoretical predictions, emerge. The in situ x-ray powder diffraction indicates a direct ferro- to paraelectric transition between the orthorhombic A21am and the tetragonal undistorted I4/mmm phase for x ≤ 0.6. We identified a reduction in the trilinear coupling robustness by increasing the Sr-doping level to lead to the emergence of the intermediate tetragonal P42/mnm phase and the gradual suppression of the orthorhombic phase. The observed character of the structure transitions and the Ca3-xSrxTi2O7 phase diagram are discussed in the framework of theoretical models of other related hybrid improper ferroelectric systems. | - |
dc.description.uri | 1 | - |
dc.language | 영어 | - |
dc.publisher | AMER INST PHYSICS | - |
dc.title | Mapping the structural transitions controlled by the trilinear coupling in Ca3- xSr x Ti2O7 | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.identifier.wosid | 000474439600012 | - |
dc.identifier.scopusid | 2-s2.0-85068178720 | - |
dc.identifier.rimsid | 69039 | - |
dc.contributor.affiliatedAuthor | Marie Kratochvilova | - |
dc.contributor.affiliatedAuthor | Je-Geun Park | - |
dc.identifier.doi | 10.1063/1.5089723 | - |
dc.identifier.bibliographicCitation | JOURNAL OF APPLIED PHYSICS, v.125, no.24, pp.244102 | - |
dc.citation.title | JOURNAL OF APPLIED PHYSICS | - |
dc.citation.volume | 125 | - |
dc.citation.number | 24 | - |
dc.citation.startPage | 244102 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | HYBRID IMPROPER FERROELECTRICITY | - |