Abstract
Strong piezoelectricity in perovskite-type PbZn1−xTixO3 (PZT) and Pb(Zn1/3Nb2/3)O3–PbTiO3 (PZN–PT) systems is generally associated with the existence of a morphotropic phase boundary (MPB) separating regions with rhombohedral and tetragonal symmetry. An x-ray study of PZN–9% PT has revealed the presence of an orthorhombic phase at the MPB, and a near-vertical boundary between the rhombohedral and orthorhombic phases, similar to that found for PZT between the rhombohedral and monoclinic phases. We discuss the results in the light of a recent theoretical paper by Vanderbilt and Cohen [Phys. Rev. B 63, 94108 (2001)], which attributes these low-symmetry phases to the high anharmonicity in these oxide systems.
References
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 8:44 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 3, 2024, 3:28 p.m.) |
Indexed | 2 weeks, 3 days ago (Aug. 5, 2025, 8:16 a.m.) |
Issued | 24 years, 1 month ago (July 16, 2001) |
Published | 24 years, 1 month ago (July 16, 2001) |
Published Print | 24 years, 1 month ago (July 16, 2001) |
@article{Cox_2001, title={Universal phase diagram for high-piezoelectric perovskite systems}, volume={79}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1384475}, DOI={10.1063/1.1384475}, number={3}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Cox, D. E. and Noheda, B. and Shirane, G. and Uesu, Y. and Fujishiro, K. and Yamada, Y.}, year={2001}, month=jul, pages={400–402} }