Size-Induced Ferroelectricity in Antiferroelectric Oxide Membranes

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dc.citation.articleNumber2210562
dc.citation.issueNumber17
dc.citation.journalTitleAdvanced Materials
dc.citation.volumeNumber35
dc.contributor.authorXu, Ruijuan
dc.contributor.authorCrust, Kevin J.
dc.contributor.authorHarbola, Varun
dc.contributor.authorArras, Rémi
dc.contributor.authorPatel, Kinnary Y.
dc.contributor.authorProsandeev, Sergey
dc.contributor.authorCao, Hui
dc.contributor.authorShao, Yu-Tsun
dc.contributor.authorBehera, Piush
dc.contributor.authorCaretta, Lucas
dc.contributor.authorKim, Woo Jin
dc.contributor.authorKhandelwal, Aarushi
dc.contributor.authorAcharya, Megha
dc.contributor.authorWang, Melody M.
dc.contributor.authorLiu, Yin
dc.contributor.authorBarnard, Edward S.
dc.contributor.authorRaja, Archana
dc.contributor.authorMartin, Lane W.
dc.contributor.authorGu, X. Wendy
dc.contributor.authorZhou, Hua
dc.contributor.authorRamesh, Ramamoorthy
dc.contributor.authorMuller, David A.
dc.contributor.authorBellaiche, Laurent
dc.contributor.authorHwang, Harold Y.
dc.date.accessioned2023-05-02T14:43:15Z
dc.date.available2023-05-02T14:43:15Z
dc.date.issued2023
dc.description.abstractDespite extensive studies on size effects in ferroelectrics, how structures and properties evolve in antiferroelectrics with reduced dimensions still remains elusive. Given the enormous potential of utilizing antiferroelectrics for high-energy-density storage applications, understanding their size effects will provide key information for optimizing device performances at small scales. Here, the fundamental intrinsic size dependence of antiferroelectricity in lead-free NaNbO3 membranes is investigated. Via a wide range of experimental and theoretical approaches, an intriguing antiferroelectric-to-ferroelectric transition upon reducing membrane thickness is probed. This size effect leads to a ferroelectric single-phase below 40 nm, as well as a mixed-phase state with ferroelectric and antiferroelectric orders coexisting above this critical thickness. Furthermore, it is shown that the antiferroelectric and ferroelectric orders are electrically switchable. First-principle calculations further reveal that the observed transition is driven by the structural distortion arising from the membrane surface. This work provides direct experimental evidence for intrinsic size-driven scaling in antiferroelectrics and demonstrates enormous potential of utilizing size effects to drive emergent properties in environmentally benign lead-free oxides with the membrane platform.
dc.identifier.citationXu, Ruijuan, Crust, Kevin J., Harbola, Varun, et al.. "Size-Induced Ferroelectricity in Antiferroelectric Oxide Membranes." <i>Advanced Materials,</i> 35, no. 17 (2023) Wiley: https://doi.org/10.1002/adma.202210562.
dc.identifier.digital2023-Xu
dc.identifier.doihttps://doi.org/10.1002/adma.202210562
dc.identifier.urihttps://hdl.handle.net/1911/114862
dc.language.isoeng
dc.publisherWiley
dc.rightsThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.titleSize-Induced Ferroelectricity in Antiferroelectric Oxide Membranes
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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