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Proceedings Paper

Field-induced lead zirconate titanate stannate antiferroelectric-to-ferroelectric phase-switching ceramics
Author(s): Shoko Yoshikawa; Numchul Kim; Thomas R. Shrout; Qi Ming Zhang; Paul Moses; Leslie Eric Cross
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Paper Abstract

The electric field induced antiferroelectric-to-ferroelectric phase transition of lead zirconate titanate stannate ceramics was investigated by means of dielectric, polarization, and strain hysteresis measurements. Compositions of varying titanium and tin within the general formula (Pb0.98La0.02) (Zr0.66Ti0.11-xSn0.23+x)O3, located in the tetragonal antiferroelectric phase field and near the ferroelectric rhombohedral boundary were prepared. As the applied electric field increased, a sudden increase in both longitudinal and transverse strain was observed with a corresponding change in dielectric constant, loss, and polarization, indicating the transition from antiferroelectric to ferroelectric phase. The longitudinal strain increased continuously into the ferroelectric phase, whereas the transverse strain became negative after the phase change. By defining the phase change field from polarization and high field dielectric constant and loss measurements, the longitudinal strains associated with the phase change for all of the compositions were less than 0.2%. For some compositions, however, the longitudinal strain increased to levels greater than 0.5% with increasing applied field. Owing to the relatively small decrease in transverse strain in the ferroelectric region, the volume strain continued to increase even after antiferroelectric to ferroelectric phase change.

Paper Details

Date Published: 22 May 1995
PDF: 10 pages
Proc. SPIE 2441, Smart Structures and Materials 1995: Smart Materials, (22 May 1995); doi: 10.1117/12.209807
Show Author Affiliations
Shoko Yoshikawa, The Pennsylvania State Univ. (United States)
Numchul Kim, The Pennsylvania State Univ. (United States)
Thomas R. Shrout, The Pennsylvania State Univ. (United States)
Qi Ming Zhang, The Pennsylvania State Univ. (United States)
Paul Moses, The Pennsylvania State Univ. (United States)
Leslie Eric Cross, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 2441:
Smart Structures and Materials 1995: Smart Materials
A. Peter Jardine, Editor(s)

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