利用配有电压自动衰减电路的铁电材料测试系统测量了PZT铁电体材料样品的电滞回线。
The PZT ferroelectric slice sample was measured by the system with the automatic voltage-decaying circuit, and hysteresis loops of the sample was exhibited.
对两种铁电薄膜的厚度、XRD图谱、SEM图像和电滞回线进行了比较和分析。
The thickness, XRD images, SEM pictures and electric hysteresis loops of these two thin films were analyzed and compared.
在相变温度区域里，介电、热电和压电都有明显的热滞效应，具有一级相变特性。
Near the transition temperature, a thermal hysteresis was found in dielectric, pyroelectric and piezoelectric measurements. Thus the transition should be of the first order transition.
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