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dc.contributor.authorBenedek, Nicole
dc.contributor.authorRondinelli, James
dc.contributor.authorDjani, Hania
dc.contributor.authorLightfoot, Philip
dc.contributor.authorGhosez, Philippe
dc.identifier.citationBenedek , N , Rondinelli , J , Djani , H , Lightfoot , P & Ghosez , P 2015 , ' Understanding ferroelectricity in layered perovskites : new ideas and insights from theory and experiments ' , Dalton Transactions , vol. 44 , no. 23 , pp. 10543-10558 .
dc.identifier.otherPURE: 167164689
dc.identifier.otherPURE UUID: d493aec3-fe91-4c1a-93b8-c823f6790a65
dc.identifier.otherScopus: 84930656573
dc.identifier.otherORCID: /0000-0001-7048-3982/work/59464429
dc.identifier.otherWOS: 000355701000002
dc.descriptionN. A. B. was supported by The Welch Foundation under Grant. No. F-1803. J. M. R. acknowledges support from the Penn State Center for Nanoscience, National Science Foundation grant no. DMR-1420620. Ph.G. acknowledges a research Professorship of the Francqui Foundation and financial supports of the ARC project TheMoTherm and FNRS project HiT4FiT.en
dc.description.abstractABO3 perovskites have fascinated solid-state chemists and physicists for decades because they display a seemingly inexhaustible variety of chemical and physical properties. However, despite the diversity of properties found among perovskites, very few of these materials are ferroelectric, or even polar, in bulk. In this Perspective, we highlight recent theoretical and experimental studies that have shown how a combination of non-polar structural distortions, commonly tilts or rotations of the BO6 octahedra, can give rise to polar structures or ferroelectricity in several families of layered perovskites. We discuss the crystal chemical origin of the polarization in each of these families -- which emerges through a so-called `trilinear coupling' or `hybrid improper' mechanism -- and emphasize areas in which further theoretical and experimental investigation is needed. We also consider how this mechanism may provide a generic route for designing not only new ferroelectrics, but also materials with various other multifunctionalities, such as magnetoelectrics and electric field-controllable metal-insulator transitions.
dc.relation.ispartofDalton Transactionsen
dc.rightsCopyright 2015 the Authors. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectQD Chemistryen
dc.titleUnderstanding ferroelectricity in layered perovskites : new ideas and insights from theory and experimentsen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.description.statusPeer revieweden

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