铁电体尺寸对其开关特性的影响

Effect of Ferroelectric System Size on Its Switching Characteristics

应用铁电体极化反转的Orihara Ishibashi理论 ,讨论了圆形铁电薄膜和球形铁电体的开关电流以及开关时间对系统尺寸的依赖性。数值计算表明 ,不论是二维还是三维铁电系统 ,其铁电畴反转过程中产生的开关电流都随系统尺寸减少而下降 。

The dependence of switching currents and switching time of a circular ferroelectric thin film and a ferroelectric sphere on thier sizes is investigated based on the Orihara\|Ishibashi theory for ferroelectric domain reversals.Computational results indicate that,for both systems,the switching current drops with decreasing system size and the switching time shortens as the system size decreases.