Morphotropic Phase Boundary in the Pb-Free (1 − x)BiTi3/8Fe2/8Mg3/8O3-xCaTiO3 System: Tetragonal Polarization and Enhanced Electromechanical Properties

Lead‐free bismuth‐based perovskite oxides with polarization directed along the [001]p primitive perovskite unit cell edge, analogous to tetragonal PbTiO3, are synthesized at ambient pressure. Enhanced piezoelectric properties, large polarizations, and high depolarization temperatures are observed in...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2015-05, Vol.27 (18), p.2883-2889
Main Authors: Mandal, Pranab, Manjón-Sanz, Alicia, Corkett, Alex J., Comyn, Tim P., Dawson, Karl, Stevenson, Timothy, Bennett, James, Henrichs, Leonard F., Bell, Andrew J., Nishibori, Eiji, Takata, Masaki, Zanella, Marco, Dolgos, Michelle R., Adem, Umut, Wan, Xinming, Pitcher, Michael J., Romani, Simon, Tran, T. Thao, Halasyamani, P. Shiv, Claridge, John B., Rosseinsky, Matthew J.
Format: Article
Language:English
Subjects:
ferroelectric
morphotropic phase boundaries
Pb-free
perovskites
tetragonal
Online Access:Get full text
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Summary:Lead‐free bismuth‐based perovskite oxides with polarization directed along the [001]p primitive perovskite unit cell edge, analogous to tetragonal PbTiO3, are synthesized at ambient pressure. Enhanced piezoelectric properties, large polarizations, and high depolarization temperatures are observed in the wide morphotropic phase boundary region formed with a rhombohedral phase, with up to 92.5% Bi on the perovskite A site.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201405452