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Mapping the structural transitions controlled by the trilinear coupling in Ca3- xSr x Ti2O7

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dc.contributor.authorMarie Kratochvilova-
dc.contributor.authorFei-Ting Huang-
dc.contributor.authorMaria-Teresa Fernandez Diaz-
dc.contributor.authorMilan Klicpera-
dc.contributor.authorSarah J. Day-
dc.contributor.authorStephen P. Thompson-
dc.contributor.authorYoon-Seok Oh-
dc.contributor.authorBin Gao-
dc.contributor.authorSang-Wook Cheong-
dc.contributor.authorJe-Geun Park-
dc.date.available2019-09-04T06:06:26Z-
dc.date.created2019-07-23-
dc.date.issued2019-06-
dc.identifier.issn0021-8979-
dc.identifier.urihttps://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.uri1-
dc.language영어-
dc.publisherAMER INST PHYSICS-
dc.titleMapping the structural transitions controlled by the trilinear coupling in Ca3- xSr x Ti2O7-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000474439600012-
dc.identifier.scopusid2-s2.0-85068178720-
dc.identifier.rimsid69039-
dc.contributor.affiliatedAuthorMarie Kratochvilova-
dc.contributor.affiliatedAuthorJe-Geun Park-
dc.identifier.doi10.1063/1.5089723-
dc.identifier.bibliographicCitationJOURNAL OF APPLIED PHYSICS, v.125, no.24, pp.244102-
dc.citation.titleJOURNAL OF APPLIED PHYSICS-
dc.citation.volume125-
dc.citation.number24-
dc.citation.startPage244102-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusHYBRID IMPROPER FERROELECTRICITY-
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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