| 人工复合铁电多层膜热释电性质的理论研究 |
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| 引用本文： | 陈辉,成泰民,陈思群.人工复合铁电多层膜热释电性质的理论研究[J].河北大学学报(自然科学版),2011,31(6):590-595. |
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| 作者姓名： | 陈辉 成泰民 陈思群 |
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| 作者单位： | 沈阳化工大学数理系,辽宁沈阳,110142 |
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| 基金项目： | 国家自然科学基金资助项目(10647138); 辽宁省科研基金资助项目(20060667) |
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| 摘 要： | 建立3种具有不同相变温度的铁电材料垂直于极化方向复合而成的铁电薄膜的理论模型,在ginzburg-landau-devonshire (GLD)唯象理论的框架下展开研究,同时引入局域分布函数来描述不同材料间过渡层的性质,主要研究了复合铁电薄膜的热释电性质.通过改变3种不同铁电材料的复合方式,计算了铁电多层膜内部的极化强...
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| 关 键 词： | 铁电薄膜 自发极化 相变温度 热释电峰 |
Theoretical Investigation on Pyroelectric Properties of Artificial Composite Ferroelectric Thin Films |
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| OHEN Hui,CHENG Tai-min,CHEN Si-qun.Theoretical Investigation on Pyroelectric Properties of Artificial Composite Ferroelectric Thin Films[J].Journal of Hebei University (Natural Science Edition),2011,31(6):590-595. |
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| Authors: | OHEN Hui CHENG Tai-min CHEN Si-qun |
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| Institution: | CHEN Hui,CHENG Tai-min,CHEN Si-qun(Department of Mathematics and Physics,Shenyang University of Chemical Technology,Shenyang 110142,China) |
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| Abstract: | A theoretical model of ferroelectric thin film composite by three ferroelectric materials with different phase-transition temperatures has been built,in which the three components composite perpendicular to the polarization.Using ginzburg-landau-devonshire(GLD) theory,a local distribution function has been introduced to describe the properties of the transition layers,and the pyroelectric properties of the composite ferroelectric thin films have been mainly investigated.Polarization distributions,transition... |
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| Keywords: | ferroelectric thin film spontaneous polarization phase-transition temperature pyroelectric peak |
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