铁电双层膜的反转动力学行为

崔莲; 邱忠阳; 李瑞英; 刘永皓; 李玉春; 夏遵义; 胡同瑞; 吕天全

doi:10.7498/aps.63.056802

物理学报

铁电双层膜的反转动力学行为

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崔莲, 邱忠阳, 李瑞英, 刘永皓, 李玉春, 夏遵义, 胡同瑞, 吕天全. 2014: 铁电双层膜的反转动力学行为, 物理学报, null(5): 056802. doi: 10.7498/aps.63.056802

引用本文:

崔莲, 邱忠阳, 李瑞英, 刘永皓, 李玉春, 夏遵义, 胡同瑞, 吕天全. 2014: 铁电双层膜的反转动力学行为, 物理学报, null(5): 056802. doi: 10.7498/aps.63.056802

Cui Lian, Qiu Zhong-Yang, Li Rui-Ying, Liu Yong-Hao, Li Yu-Chun, Xia Zun-Yi, Hu Tong-Rui, L Tian-Quan. 2014: Switching dynamic b ehavior of a ferro electric bilayer film, Acta Physica Sinica, null(5): 056802. doi: 10.7498/aps.63.056802

Citation:

Cui Lian, Qiu Zhong-Yang, Li Rui-Ying, Liu Yong-Hao, Li Yu-Chun, Xia Zun-Yi, Hu Tong-Rui, L Tian-Quan. 2014: Switching dynamic b ehavior of a ferro electric bilayer film, Acta Physica Sinica, null(5): 056802. doi: 10.7498/aps.63.056802

铁电双层膜的反转动力学行为

大庆师范学院物理与电气信息工程学院，物理系，大庆 163712
哈尔滨工业大学凝聚态物理研究所,哈尔滨,150001

Switching dynamic b ehavior of a ferro electric bilayer film

摘要: 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。
- 铁电双层膜 /
- 反转行为 /
- 界面耦合 /
- 表面过渡层
Abstract: Based on the Landau-Khalatnikov equation of motion, the switching dynamic behaviors, (including the average polarization, switching time, switching current and coercive field) of a ferroelectric bilayer film with a surface transition layer within each constituent thin film and a ferroelectric interfacial coupling between two thin films have been inves-tigated. Results reveal that there is a competitive mechanism in the bilayer film, the action of surface transition layer and the interfacial coupling. The abnormal behavior is discovered in the polarization reversal process of the bilayer film, which can be attributed to the competition between the surface transition layer and the interfacial coupling. The combined action of surface transition layer and interfacial coupling plays a decisive role on the dynamic properties of a ferroelectric bilayer film.

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铁电双层膜的反转动力学行为

大庆师范学院物理与电气信息工程学院，物理系，大庆 163712
哈尔滨工业大学凝聚态物理研究所,哈尔滨,150001

关键词:

摘要: 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。

English Abstract

Switching dynamic b ehavior of a ferro electric bilayer film

大庆师范学院物理与电气信息工程学院，物理系，大庆 163712
哈尔滨工业大学凝聚态物理研究所,哈尔滨,150001

Keywords:

Abstract: Based on the Landau-Khalatnikov equation of motion, the switching dynamic behaviors, (including the average polarization, switching time, switching current and coercive field) of a ferroelectric bilayer film with a surface transition layer within each constituent thin film and a ferroelectric interfacial coupling between two thin films have been inves-tigated. Results reveal that there is a competitive mechanism in the bilayer film, the action of surface transition layer and the interfacial coupling. The abnormal behavior is discovered in the polarization reversal process of the bilayer film, which can be attributed to the competition between the surface transition layer and the interfacial coupling. The combined action of surface transition layer and interfacial coupling plays a decisive role on the dynamic properties of a ferroelectric bilayer film.

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铁电双层膜的反转动力学行为

Switching dynamic b ehavior of a ferro electric bilayer film

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铁电双层膜的反转动力学行为

English Abstract

Switching dynamic b ehavior of a ferro electric bilayer film

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