二维铁电开关的Orihara-Ishibashi理论的精确解

1.华东船舶工业学院基础学科系,镇江,212003

2.华东船舶工业学院信息与电子系,镇江,212003

3.东南大学电子工程系,南京,210096

Exact Solution to the Two-dimensional Ishibashi-Orihara Ferroelectric Switching Theory

将Orihara-Ishibashi铁电体统计理论用于二维正方形铁电薄膜,求出正方形铁电畴反转过程的体积比Q(t)和反转速率dQ/dt的解析表达式,并作了数值计算.结果表明,最大开关电流随系统尺寸l增大而上升,开关时间在系统尺寸l＜0.95时随l减小而下降,l＞0.95时随l减小略有上升.

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