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강상관계 물질 연구단
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In Situ Cryogenic HAADF-STEM Observation of Spontaneous Transition of Ferroelectric Polarization Domain Structures at Low Temperatures

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dc.contributor.authorJunsik Mun-
dc.contributor.authorWei Peng-
dc.contributor.authorChang Jae Roh-
dc.contributor.authorSangmin Lee-
dc.contributor.authorMatsumura, Syo-
dc.contributor.authorLee, Jong Seok-
dc.contributor.authorTae Won Noh-
dc.contributor.authorMiyoung Kim-
dc.date.accessioned2021-11-17T06:50:05Z-
dc.date.available2021-11-17T06:50:05Z-
dc.date.created2021-11-08-
dc.date.issued2021-10-27-
dc.identifier.issn1530-6984-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/10682-
dc.description.abstract© 2021 The Authors. Published by American Chemical Society.Precise determination of atomic structures in ferroelectric thin films and their evolution with temperature is crucial for fundamental study and design of functional materials. However, this has been impeded by the lack of techniques applicable to a thin-film geometry. Here we use cryogenic scanning transmission electron microscopy (STEM) to observe the atomic structure of a BaTiO3 film on a (111)-SrTiO3 substrate under varying temperatures. Our study explicitly proves a structure transition from a complex polymorphic nanodomain configuration at room temperature transitioning to a homogeneous ground-state rhombohedral structure of BaTiO3 below ∼250 K, which was predicted by phase-field simulation. More importantly, another unexpected transition is revealed, a transition to complex nanodomains below ∼105 K caused by an altered mechanical boundary condition due to the antiferrodistortive phase transition of the SrTiO3 substrate. This study demonstrates the power of cryogenic STEM in elucidating structure-property relationships in numerous functional materials at low temperatures.-
dc.language영어-
dc.publisherAmerican Chemical Society-
dc.titleIn Situ Cryogenic HAADF-STEM Observation of Spontaneous Transition of Ferroelectric Polarization Domain Structures at Low Temperatures-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000713060900020-
dc.identifier.scopusid2-s2.0-85118189274-
dc.identifier.rimsid76696-
dc.contributor.affiliatedAuthorJunsik Mun-
dc.contributor.affiliatedAuthorWei Peng-
dc.contributor.affiliatedAuthorChang Jae Roh-
dc.contributor.affiliatedAuthorSangmin Lee-
dc.contributor.affiliatedAuthorTae Won Noh-
dc.contributor.affiliatedAuthorMiyoung Kim-
dc.identifier.doi10.1021/acs.nanolett.1c02729-
dc.identifier.bibliographicCitationNano Letters, v.21, no.20, pp.8679 - 8686-
dc.relation.isPartOfNano Letters-
dc.citation.titleNano Letters-
dc.citation.volume21-
dc.citation.number20-
dc.citation.startPage8679-
dc.citation.endPage8686-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaScience & Technology - Other Topics-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaPhysics-
dc.relation.journalWebOfScienceCategoryChemistry, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryNanoscience & Nanotechnology-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryPhysics, Applied-
dc.relation.journalWebOfScienceCategoryPhysics, Condensed Matter-
dc.subject.keywordPlusTRANSMISSION ELECTRON-MICROSCOPY-
dc.subject.keywordPlusMORPHOTROPIC PHASE-BOUNDARY-
dc.subject.keywordPlusCRYSTAL-STRUCTURE-
dc.subject.keywordPlusTITANATE-
dc.subject.keywordPlusDISTORTION-
dc.subject.keywordAuthorepitaxial oxide films-
dc.subject.keywordAuthorferroelectric domain structures-
dc.subject.keywordAuthorferroelectrics-
dc.subject.keywordAuthorin situ cryogenic STEM-
dc.subject.keywordAuthorphase transition-
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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