| 铁电体中相界运动对压力的依赖性 |
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| 引用本文： | 艾树涛.铁电体中相界运动对压力的依赖性[J].中国物理 B,2005,14(6):1246-1249. |
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| 作者姓名： | 艾树涛 |
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| 作者单位： | Department of Physics, Linyi Normal University, Linyi, Shandong,276005, China |
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| 基金项目： | Project supported by the Research Foundation Program of Linyi Normal University with grant No. YJB03004. |
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| 摘 要： | 在平均场理论的框架内研究了KNbO3 中的顺电—铁电相界在静水压的运动。纠缠解被用于不同压力下相界宽度和速度的计算。计算基于居里—外斯常数的实验数值和自由能的金兹堡—朗道展开式的参数。非经验性地研究了对静水压和三相点的响应。
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| 关 键 词： | 相界 压力 铁电体 金兹堡—朗道方程 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2/4/2005 12:00:00 AM |
Dependence of interface motion on pressure in ferroelectrics |
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| Ai Shu-Tao.Dependence of interface motion on pressure in ferroelectrics[J].Chinese Physics B,2005,14(6):1246-1249. |
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| Authors: | Ai Shu-Tao |
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| Institution: | Department of Physics, Linyi Normal University, Linyi, Shandong,276005, China |
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| Abstract: | The motion of the paraelectric-ferroelectric interface in KNbO3 under hydrostatic pressure is studied in the framework of the mean-field theory. The kink solution is applied to the calculations of the width and velocity of the interface at different pressures. The calculations are based on the experimental data for the Curie-Weiss constant and the parameter of the Ginzburg-Landau expression for the free energy. The response to hydrostatic pressure and tricritical point is investigated nonempirically. |
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| Keywords: | Interface Pressure Ferroelectrics Ginzburg-Landau Equation |
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