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基于Landau-Khalatnikov运动方程,本文研究了含有表面过渡层和铁电界面耦合的反转动力学行为(包括平均极化、反转时间、反转电流和矫顽场).研究结果表明:在铁电双层膜系统中存在一个竞争的机理,即表面过渡层与界面耦合的竞争作用.我们发现在双层膜反转过程中出现了反常行为,这些反常行为归因于表面过渡层与界面耦合之间的竞争.表面过渡层与界面耦合的共同行为对铁电双层膜的动力学特性起到了决定性的作用.
Based on the Landau-Khalatnikov equation of motion, the reversal dynamic behaviors (including the average polarization, the reversal time, the reversal current and the coercive field) are investigated in the paper. The results show that in the iron There is a competing mechanism in the electric bilayer membrane system, that is, the competition between the surface transition layer and the interface coupling.We find that anomalous behavior occurs during the reversal of the bilayer membrane, and these abnormal behaviors are attributed to the coupling of the surface transition layer with the interface The common behavior of the surface transition layer and the interface coupling plays a decisive role in the dynamics of the ferroelectric bilayer membrane.