Temperature-dependent ferroelectric hysteresis properties of modified lead zirconate titanate ceramics |
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| Authors: | Baohua Wen Yong Zhang Xiaolin Liu Liang Ma Xiangrong Wang |
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| Affiliation: | 1. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
2. Beijing Fine Ceramics Laboratory, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
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| Abstract: | Temperature-dependent ferroelectric hysteresis properties of modified lead zirconate titanate ceramics have been investigated
in a wide temperature range from 300 to 433 K. It is observed that remnant polarization, saturation polarization, and coercive
field are increasing with an increase of the temperature in a low-field region and decreasing in a high-field region. Such
behavior is explained by the competition between switching and backswitching mechanisms. A three-stage dependence of the logarithm
of the hysteresis loop area on the logarithm of the electric field is identified. The temperature dependence of backswitching
properties has been studied. The obtained results indicate that the temperature dependence of the polarization backswitching
can be well described by the Arrhenius law. The activation energy for the domain switching determined from the fitting results
exhibits decreasing tendency with the increase of the electric field. |
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