| 铁电微分回线谱参数和极化疲劳 |
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| 引用本文： | 陈敏,朱贵文,周伟华,沈韩,李景德.铁电微分回线谱参数和极化疲劳[J].无机材料学报,2007,22(3):461-464. |
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| 作者姓名： | 陈敏 朱贵文 周伟华 沈韩 李景德 |
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| 作者单位： | 1. 中山大学物理科学与工程技术学院, 广州 510275; 2. 广东药学院物理教研室, 广州 510224; 3. 宜春学院物理系, 宜春 336000 |
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| 基金项目： | 广东省自然科学基金;广东省自然科学基金;国家博士科研启动项目 |
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| 摘 要： | 用铁电微分回线谱分析方法研究了Ba 0.99 Sr 0.01 TiO 3陶瓷的极化疲劳效应, 该方法可将线性和非线性电导、非铁电极化电容、以及纯铁电极化信号完全分开. 实验给出各效应对应的微分谱线型参数在疲劳过程中的变化规律, 并据此分出样品中分别由180°畴和90°畴提供的极化, 发现在同等作用下, 180°畴提供的极化更快出现疲劳.
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| 关 键 词： | 铁电性 疲劳 微分回线 钛酸锶钡 |
| 文章编号： | 1000-324X（2007）03-0461-04 |
| 收稿时间： | 2006-5-25 |
| 修稿时间： | 2006-05-252006-08-08 |
Differential Hysteresis loop of Ferroelectrics and Polarization Fatigue |
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| CHEN Min,ZHU Gui-Wen,ZHOU Wei-Hua,SHEN Han,LI Jing-De.Differential Hysteresis loop of Ferroelectrics and Polarization Fatigue[J].Journal of Inorganic Materials,2007,22(3):461-464. |
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| Authors: | CHEN Min ZHU Gui-Wen ZHOU Wei-Hua SHEN Han LI Jing-De |
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| Affiliation: | 1. School of Physics Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; 2. Department of Physics, Guangdong College of Pharmacy, Guangzhou 510224, China; 3. Department of Physics, Yi Chun College, Yichun 336000, China |
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| Abstract: | By means of ferroelectric differential hysteresis loop spectra, the polarization fatigue of Ba 0.99 Sr 0.01 TiO3 ceramics was carefully studied. The effects of conductance, paraelectrics and pure ferroelectrics could be definitely separated. The results show that the polarization fatigue arose from 180° domain appears much faster than that arose from 90° domain. Ferroelectric differential loop spectra are proved to be a much more powerful method to describe polarization fatigue than traditional hysteresis loop. |
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| Keywords: | ferroelectricity fatigue differential hysteresis loop BST |
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