Ferrielectricity in the archetypal antiferroelectric, PbZrO3
Date
19/01/2023Author
Grant ID
ep/l017008/1
EP/R023751/1
EP/T019298/1
Keywords
Metadata
Show full item recordAbstract
Antiferroelectric materials, where the transition between antipolar and polar phase is controlled by external electric fields, offer exceptional energy storage capacity with high efficiencies, giant electrocaloric effect, and superb electromechanical response. PbZrO3 is the first discovered and the archetypal antiferroelectric material. Nonetheless, substantial challenges in processing phase pure PbZrO3 have limited studies of the undoped composition, hindering understanding of the phase transitions in this material or unraveling the controversial origins of a low-field ferroelectric phase observed in lead zirconate thin films. Leveraging highly oriented PbZrO3 thin films, a room temperature ferrielectric phase is observed in absence of external electric fields, with modulations of amplitude and direction of the spontaneous polarization and large anisotropy for critical electric fields required for phase transition. The ferrielectric state observations are qualitatively consistent with theoretical predictions, and correlate with very high dielectric tunability, and ultra-high strains (up to 1.1%). This work suggests a need for re-evaluation of the fundamental science of antiferroelectricity in this archetypal material.
Citation
Yao , Y , Naden , A , Tian , M , Lisenkov , S , Beller , Z , Kumar , A , Kacher , J , Ponomareva , I & Bassiri-Gharb , N 2023 , ' Ferrielectricity in the archetypal antiferroelectric, PbZrO 3 ' , Advanced Materials , vol. 35 , no. 3 , 2206541 . https://doi.org/10.1002/adma.202206541
Publication
Advanced Materials
Status
Peer reviewed
ISSN
0935-9648Type
Journal article
Description
Funding: N.B.-G. and Y.Y. acknowledge financial support by the U.S. National Science Foundation under grant No. CMMI-1537262, DMR- 2026976. N.B.-G. and Z.B. also acknowledge financial support by theU.S. National Science Foundation under grant DMR-2219476 and the Harris Saunders Jr. Chair endowment at Georgia Tech. A.B.N. acknowledges financial support by the Engineering and Physical Sciences Research Council under grant numbers EP/L017008/1, EP/R023751/1 and EP/T019298/1. S.L. and I.P. acknowledge financial support by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under grant DE-SC0005245. A.K. gratefully acknowledges support by Department of Education and Learning, Northern Ireland through the US-Ireland R&D partnership Grant No. USI-211.Collections
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