Dynamic Hysteresis and Scaling Behavior of Energy Density in Pb0.99Nb0.02[(Zr0.60Sn0.40)0.95Ti0.05]O3 Antiferroelectric Bulk Ceramics
Dynamic Hysteresis and Scaling Behavior of Energy Density in Pb0.99Nb0.02[(Zr0.60Sn0.40)0.95Ti0.05]O3 Antiferroelectric Bulk Ceramics
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DOI：
10.1111/j.1551-2916.2012.05070.x
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发表时间：
2012-04
影响因子：
3.9
通讯作者：
Xuefeng Chen;F. Cao;Z. Hongling;Gang-jin Yu;Genshui Wang;Xianlin Dong;Y. Gu;Hongliang He;Yusheng Liu
中科院分区：
文献类型：
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作者：
Xuefeng Chen;F. Cao;Z. Hongling;Gang-jin Yu;Genshui Wang;Xianlin Dong;Y. Gu;Hongliang He;Yusheng Liu
本文系统地研究了锆钛酸铅锡酸盐反铁电体陶瓷在不同频率（f）和不同场幅值（E0）下的动态电滞的演化。当工作磁场略低于正向开关磁场时，观察到一系列不对称的小回线。当E0增加到EAF以上时，出现对称的双环，它们的能量密度w与f和E0的关系符合标度行为：w = f − 0.02（E0 − Ec）0.08，其中Ec代表阈值场，指定为EAF。该研究对反铁电材料作为储能电容器的应用具有一定的指导意义。
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∝∝∝∝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.