Dynamic Hysteresis and Scaling Behavior of Energy Density in
0.99 Pb 0.02[( Nb 0.60 Zr 0.40)0.95 Sn 0.05] Ti 3
Antiferroelectric Bulk Ceramics
The evolution of dynamic hysteresis of lead zirconate titanate stannate antiferroelectric bulk ceramics at various frequencies (f) and field amplitudes (E 0) has been investigated systematically. A series of asymmetrical minor loops were observed when the working fields were slightly lower than the forward switching field E AF. As E 0 increased above E AF, symmetrical double loops appeared and their energy densities w against f and E 0 were found to be fit the scaling behavior as w f −0.02(E 0 − E c)0.08, where E c representing the threshold field is designated as E AF. The study is helpful to application of antiferroelectrics as energy‐storage capacitors.
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Document Type: Research Article
Publication date: April 1, 2012