Abnormal dielectric characteristics of PMN- 32% PT single crystal under dc bias

查看全文 作　　者：XI [1]Zengzhe;LI [2]Zhenrong;XU [2]Zhuo;ZHANG [1]Liangying;YAO [1,2]Xi

机构地区：[1]Functional Materials Research Laboratory, Tongji University, Shanghai 200092. China;[2]Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China

出　　处：《Chinese Science Bulletin》索引2003年第48卷第19期,共3页

基　　金：This work was supprted by the University Key Studies Project of Shanghai. 摘　　要：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. 关键词：不规则电介质 PMN-PT 单晶铁电体相转换

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Abnormal dielectric characteristics of PMN- 32% PT single crystal under dc bias

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