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Stabilizing hidden room-temperature ferroelectricity via a metastable atomic distortion pattern

DC Field Value Language
dc.contributor.authorJeong Rae Kim-
dc.contributor.authorJinhyuk Jang-
dc.contributor.authorKyoung-June Go-
dc.contributor.authorSe Young Park-
dc.contributor.authorChang Jae Roh-
dc.contributor.authorJohn Bonini-
dc.contributor.authorJinkwon Kim.-
dc.contributor.authorHan Gyeol Lee-
dc.contributor.authorKarin M. Rabe-
dc.contributor.authorJong Seok Lee-
dc.contributor.authorSi-Young Choi-
dc.contributor.authorTae Won Noh-
dc.contributor.authorDaesu Lee-
dc.date.accessioned2020-12-22T02:22:28Z-
dc.date.accessioned2020-12-22T02:22:28Z-
dc.date.available2020-12-22T02:22:28Z-
dc.date.available2020-12-22T02:22:28Z-
dc.date.created2020-11-09-
dc.date.issued2020-12-
dc.identifier.issn2041-1723-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/7524-
dc.description.abstract© 2020, The Author(s). Nonequilibrium atomic structures can host exotic and technologically relevant properties in otherwise conventional materials. Oxygen octahedral rotation forms a fundamental atomic distortion in perovskite oxides, but only a few patterns are predominantly present at equilibrium. This has restricted the range of possible properties and functions of perovskite oxides, necessitating the utilization of nonequilibrium patterns of octahedral rotation. Here, we report that a designed metastable pattern of octahedral rotation leads to robust room-temperature ferroelectricity in CaTiO3, which is otherwise nonpolar down to 0 K. Guided by density-functional theory, we selectively stabilize the metastable pattern, distinct from the equilibrium pattern and cooperative with ferroelectricity, in heteroepitaxial films of CaTiO3. Atomic-scale imaging combined with deep neural network analysis confirms a close correlation between the metastable pattern and ferroelectricity. This work reveals a hidden but functional pattern of oxygen octahedral rotation and opens avenues for designing multifunctional materials-
dc.description.uri1-
dc.language영어-
dc.publisherNATURE PUBLISHING GROUP-
dc.subjectHETEROSTRUCTURES-
dc.subjectPEROVSKITES-
dc.subjectPOLARIZATION-
dc.subjectDYNAMICS-
dc.subjectCRYSTAL-
dc.subjectCATIO3-
dc.titleStabilizing hidden room-temperature ferroelectricity via a metastable atomic distortion pattern-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000577121500007-
dc.identifier.scopusid2-s2.0-85091757264-
dc.identifier.rimsid73319-
dc.contributor.affiliatedAuthorJeong Rae Kim-
dc.contributor.affiliatedAuthorSe Young Park-
dc.contributor.affiliatedAuthorJinkwon Kim.-
dc.contributor.affiliatedAuthorHan Gyeol Lee-
dc.contributor.affiliatedAuthorTae Won Noh-
dc.identifier.doi10.1038/s41467-020-18741-w-
dc.identifier.bibliographicCitationNATURE COMMUNICATIONS, v.11, no.1, pp.4944-
dc.citation.titleNATURE COMMUNICATIONS-
dc.citation.volume11-
dc.citation.number1-
dc.citation.startPage4944-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusHETEROSTRUCTURES-
dc.subject.keywordPlusPEROVSKITES-
dc.subject.keywordPlusPOLARIZATION-
dc.subject.keywordPlusDYNAMICS-
dc.subject.keywordPlusCRYSTAL-
dc.subject.keywordPlusCATIO3-
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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