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dc.contributor.authorZhang, Linxing
dc.contributor.authorChen, Jun
dc.contributor.authorFan, Longlong
dc.contributor.authorDiéguez, Oswaldo
dc.contributor.authorCao, Jiangli
dc.contributor.authorPan, Zhao
dc.contributor.authorWang, Yilin
dc.contributor.authorWang, Jinguo
dc.contributor.authorKim, Moon
dc.contributor.authorDeng, Shiqing
dc.contributor.authorWang, Jiaou
dc.contributor.authorWang, Huanhua
dc.contributor.authorDeng, Jinxia
dc.contributor.authorYu, Ranbo
dc.contributor.authorScott, James Floyd
dc.contributor.authorXing, Xianran
dc.identifier.citationZhang , L , Chen , J , Fan , L , Diéguez , O , Cao , J , Pan , Z , Wang , Y , Wang , J , Kim , M , Deng , S , Wang , J , Wang , H , Deng , J , Yu , R , Scott , J F & Xing , X 2018 , ' Giant polarization in super-tetragonal ferroelectric thin films through interphase strain ' , Science , vol. 361 , no. 6401 , pp. 494-497 .
dc.identifier.otherPURE: 252015511
dc.identifier.otherPURE UUID: 9beb6368-424f-4365-89d3-68b039b17d0f
dc.identifier.otherScopus: 85051146678
dc.identifier.otherWOS: 000440627300040
dc.description.abstractStrain engineering has emerged as a powerful tool to enhance the performance of known functional materials. Here we demonstrate a general and practical method to obtain super-tetragonality and giant polarization using interphase strain. We use this method to create an out-of-plane–to–in-plane lattice parameter ratio of 1.238 in epitaxial composite thin films of tetragonal lead titanate (PbTiO3), compared to 1.065 in bulk. These thin films with super-tetragonal structure possess a giant remanent polarization, 236.3 microcoulombs per square centimeter, which is almost twice the value of known ferroelectrics. The super-tetragonal phase is stable up to 725°C, compared to the bulk transition temperature of 490°C. The interphase-strain approach could enhance the physical properties of other functional materials.
dc.rights© 2018, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.titleGiant polarization in super-tetragonal ferroelectric thin films through interphase strainen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.description.statusPeer revieweden

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