Abstract

The applicability of Landau-Devonshire phenomenological model with an extended kinetic energy term on the response of the hysteresis, including remanent polarization, coercive field, and loop area, to the wide-span frequency of time-varying external field is investigated for ferroelectric film. A suitable and typical physics parameter set is found to permit all three variables as a function of frequency to be single-peaked, which is as understandable as the common forced damping oscillation. The present power-law scaling in the low or high frequency range can be compared with previous observation and calculation.

中文翻译：

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基于Landau-Devonshire理论和运动能的铁电薄膜频率相关的磁滞回线

摘要

研究了具有扩展的动能项的Landau-Devonshire现象学模型在磁滞响应（包括剩余极化，矫顽场和环路面积）对时变外场的宽跨度频率响应中的适用性。发现合适且典型的物理参数集可将所有三个变量作为频率的函数设为单峰，这与常见的强制阻尼振荡一样容易理解。可以将当前在低频或高频范围内的功率定律缩放与先前的观察和计算进行比较。