ABSTRACT In this paper, a very simple methodology to characterize the polarization of ferroelectrics via electrical field is proposed. This methodology allows us to use not only experimental electrical field-polarization curve as classical models do, but also physical status of ferroelectrics. The methodology is based on the use of Fermi-Dirac distribution, from eight measured P–E curves of two ferroelectrics materials, the theoretical polarization-electrical field curve repeat experimental path very well. Meanwhile, the effects of physical status on ferroelectric hysteresis loop are explained through mathematical route.

中文翻译：

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通过显式函数计算铁电磁滞回线

摘要 在本文中，提出了一种通过电场表征铁电体极化的非常简单的方法。这种方法使我们不仅可以像经典模型一样使用实验电场极化曲线，还可以使用铁电体的物理状态。该方法基于费米-狄拉克分布，从两种铁电材料的8条实测P-E曲线中，理论极化-电场曲线很好地重复了实验路径。同时，通过数学途径解释了物理状态对铁电磁滞回线的影响。