| 0．76PMN-0．24PT单晶极化前后的介电特性 |
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| 引用本文： | 张崇辉,朱长军,张晓军,刘汉臣.0．76PMN-0．24PT单晶极化前后的介电特性[J].西北纺织工学院学报,2011(5):605-607. |
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| 作者姓名： | 张崇辉 朱长军 张晓军 刘汉臣 |
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| 作者单位： | 西安工程大学理学院,陕西西安710048 |
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| 基金项目： | 西安工程大学基础研究项目（2009JC109） |
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| 摘 要： | 研究电场对0．76PbMgl／3Nb2／303-0．24PbTi03（0．76PMN-0．24PT）单晶结构影响．采用介电特性测量的方法，分析了0．76PMN--0．24PT单晶在直流电场极化前后介电常数随温度和频率的关系．实验结果表明，0．76PMN-0．24PT单晶极化前后介电特性有明显的差异，电场作用使单晶的内部从微畴转变为铁电宏畴．
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| 关 键 词： | 0．76PMN-0．24PT单晶 介电常数 极化 |
The dielectric properties of as-grown and poled 0. 76PMN-0. 24PT single crystal |
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| ZHANG Chong-hui,ZHU Chang-jun,ZHANG Xiao-jun,LIU Han-chen.The dielectric properties of as-grown and poled 0. 76PMN-0. 24PT single crystal[J].Journal of Northwest Institute of Textile Science and Technology,2011(5):605-607. |
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| Authors: | ZHANG Chong-hui ZHU Chang-jun ZHANG Xiao-jun LIU Han-chen |
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| Affiliation: | ( School of Science, Xi＇an Polytechnic University, Xi＇an 710048, China) |
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| Abstract: | For studying the electric field effect on the structure of 0. 76PbMg1/3Nb2/3 03-0. 24PbTiO3 （0. 76PMN-0. 24PT） single crystal, the method of dielectric properties measurement is usecl, lne melecmc consumt of asgrown and poled 0. 76PMN-0. 24PT single crystal dependent on temperature and frequency are investigated and compared each other. The results show that there is distinct change about the dielectric properties of 0. 76PMN- 0. 24PT single crystal before and after being poled. The micro-structure of 0. 76PMN-0. 24PT single crystal is in- fluenced by electric directly and undergo microdomain-to-marodomain. |
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| Keywords: | 0 76PMN-0 24PT single crystal dielectric constant pole |
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