| 非理想表面层对一级相变铁电薄膜性质的影响 |
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| 引用本文： | 师尚贵,林珊.非理想表面层对一级相变铁电薄膜性质的影响[J].吉林大学学报(理学版),2004,42(3):424-426. |
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| 作者姓名： | 师尚贵 林珊 |
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| 作者单位： | 大庆师范学院物理系,大庆,163712;吉林大学物理学院,长春,130023 |
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| 摘 要： | 应用Ginzburg-Landau-Devonshire(GLD) 理论研究了
非理想表面对夹持在两个金属电极间的一级铁电薄膜性质的影响. 结果表明， 非理想表面层的存在降低了一级铁电薄膜的铁电相变转变温度， 当两个表面层不对称时， 铁电薄膜的电滞回线失去了中心对称性.
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| 关 键 词： | 一级相变 铁电薄膜 GLD理论 电滞回线 |
| 文章编号： | 1671-5489(2004)03-0424-03 |
| 收稿时间： | 2004-06-01 |
| 修稿时间： | 2004年6月1日 |
Influence of imperfect surface layers on properties of first-order phase transition ferroelectric thin films |
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| SHI Shang-gui.Influence of imperfect surface layers on properties of first-order phase transition ferroelectric thin films[J].Journal of Jilin University: Sci Ed,2004,42(3):424-426. |
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| Authors: | SHI Shang-gui |
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| Institution: | 1. Department of Physics, Daqing Normal College, Daqing 163712, China; 2. College of Physics, Jilin University, Changchun 130023, China |
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| Abstract: | With the help of Ginzburg-Landau-Devonshire (GLD) theory, the influence of imperfect surface layers on the properties of first-order ferroelectric thin films intercalated between two metal electrodes is theoretically studied. The results show that the imperfect surface layer of ferroelectric thin films lowers the phase transition temperature. When the imperfect surface layers are asymmetric, the hysteresis hoop of the ferroelectric thin film loses its center symmetry. |
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| Keywords: | first-order phase transition ferroelectric thin film GLD theory hysteresis hoop |
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