Morphotropic Phase Boundary in the Pb‐Free (1 − x)BiTi₃/₈Fe₂/₈Mg₃/₈O₃–xCaTiO₃ System: Tetragonal Polarization and Enhanced Electromechanical Properties
- Mandal, P
- Manjõn-Sanz, A
- Corkett, AJ
- Comyn, TP
- Dawson, K
- Stevenson, T
- Bennett, J
- Henrichs, LF
- Bell, AJ
- Nishibori, E
- Takata, M
- Zanella, M
- Dolgos, MR
- Adem, U
- Wan, X
- Pitcher, MJ
- Romani, S
- Tran, TT
- Halasyamani, PS
- Claridge, JB
- Rosseinsky, MJ
DOIAbstract
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
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