Dynamic Hysteresis and Scaling Behavior of Energy Density in <fc><fr>Pb</fr></fc><sub>0.99</sub><fc><fr>Nb</fr></fc><sub>0.02</sub>[(<fc><fr>Zr</fr></fc><sub>0.60</sub><fc><fr>Sn</fr></fc><sub>0.40</sub>)<sub>0.95</sub><fc><fr>Ti</fr></fc><sub>0.05</sub>]<fc><fr>O</fr></fc><sub>3</sub> Antiferroelectric Bulk Ceramics
Authors: Chen, Xuefeng; Cao, Fei; Zhang, Hongling; Yu, Gang; Wang, Genshui; Dong, Xianlin; Gu, Yan; He, Hongliang; Liu, Yusheng; Brennecka, G. L.
Source: Journal of the American Ceramic Society, Volume 95, Number 4, 1 April 2012 , pp. 1163-1166(4)
Abstract:The evolution of dynamic hysteresis of lead zirconate titanate stannate antiferroelectric bulk ceramics at various frequencies (f) and field amplitudes (E0) has been investigated systematically. A series of asymmetrical minor loops were observed when the working fields were slightly lower than the forward switching field EAF. As E0 increased above EAF, symmetrical double loops appeared and their energy densities w against f and E0 were found to be fit the scaling behavior as w <math xmlns="http://www.w3.org/1998/Math/MathML" altimg="urn:x-wiley:00027820:media:jace5070:jace5070-math-0001" location="equation/jace5070-math-0001.gif"><mrow><mo>∝</mo><mo>∝</mo><mo>∝</mo><mo>∝</mo></mrow></math> f−0.02(E0 − Ec)0.08, where Ec representing the threshold field is designated as EAF. The study is helpful to application of antiferroelectrics as energy-storage capacitors.
Document Type: Research article
Publication date: 2012-04-01