| Abnormal dielectric characteristics of PMN-32%PT single crystal under dc bias |
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| 作者姓名： | XI Zengzhe LI Zhenrong XU Zhuo ZHANG Liangying & YAO Xi . Functional Materials Research Laboratory Tongji University Shanghai China . Key Laboratory of the Ministry of Education Xi抋n Jiaotong University Xi抋n China |
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| 作者单位： | XI Zengzhe1，LI Zhenrong2，XU Zhuo2，ZHANG Liangying1 & YAO Xi1，2 1. Functional Materials Research Laboratory，Tongji University，Shanghai 200092，China; 2. Key Laboratory of the Ministry of Education，Xi抋n Jiaotong University，Xi抋n 710049，China |
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| 基金项目： | 上海市大学校科研和教改项目 |
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| 摘 要： | It has been reported that the single crystal of relaxor ferroelectrics (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) with the compositions near the morphotropic phase boundary (MPB, 0.28
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| 关 键 词： | 不规则电介质 PMN-PT 单晶 铁电体 相转换 |
Abnormal dielectric characteristics of PMN-32%PT single crystal under dc bias |
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| Zengzhe Xi,Zhenrong Li,Zhuo Xu,Liangying Zhang,Xi Yao.Abnormal dielectric characteristics of PMN-32%PT single crystal under dc bias[J].Chinese Science Bulletin,2003,48(19):2038-2040. |
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| Authors: | Zengzhe Xi Zhenrong Li Zhuo Xu Liangying Zhang Xi Yao |
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| Institution: | (1) Functional Materials Research Laboratory, Tongji University, 200092 Shanghai, China;(2) Key Laboratory of the Ministry of Education, Xi’an Jiaotong University, 710049 Xi’an, China |
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| Abstract: | The dielectric properties and phase transition behavior of the 001] and 111] oriented PMN-32%PT single crystal under the different dc bias (E) have been investigated as a function of temperatures. Under the application of dc bias ranging from 1.5 to 4.0 kV/cm, the dielectric spectrum of a 001] oriented single crystal showed an abnormal dielectric peak within the rhombic phase-stable temperature range. However, this peak disappeared at E>4.0 kV/cm and was not yet found in the 111] oriented single crystal. The abnormal dielectric peak was attributed to the filed-induced phase transition. |
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| Keywords: | PMN-PT sigle crystal dc bias dielectric properties ferroelectric phase transition |
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