%0 Journal Article
%T The phase transformation, dielectric and pyroelectric properties of (PbBa)(Zr,Sn,Ti)O3 solid solutions with compositions near AFE/RFE phase boundary<br>(PbBa)(Zr,Sn,Ti)O_3反铁电/弛豫型铁电相界陶瓷的相变与介电、热释电性质
%A Liu Peng
%A Bian Xiao-Bing
%A Zhang Liang-Ying
%A Yao Xi
%A <br>刘鹏
%A 边小兵
%A 张良莹
%A 姚熹
%J 物理学报
%D 2002
%I 
%X 通过对(Pb087Ba01La002)(Zr06TixSn04-x)O3(004≤x≤020)固溶体的介电和偏压热释电性质的研究发现,当Ti含量004≤x≤007时,材料是反铁电四方相,而当009≤x≤020时,材料向弛豫型铁电体转化.在温度Ti含量相图中,x=009附近形成了反铁电铁电顺电三相共存点(Ttr).该点的相变温度最底;对于004≤x≤007的反铁电四方相,低温下呈现介电弛豫特征,并可被外电场诱导为亚稳铁电态,温度升高时,亚稳铁电→反铁电相变,反铁电→顺电相变引起两个热释电流峰,偏置电场下峰位和峰强均发生移动,在温度电场相图中也形成了铁电反铁电顺电三相点.从复杂化合物纳米相分离的观点和晶格动力学出发,讨论了相变与电学性能随Ti含量(x)和外电场(E)变化的物理机理.
%K antiferroelectric/ferroelectric relaxor phase boundary
%K dielectric properties
%K pyroelectric current under DC bias
%K ferroelectric
%K antiferroelectric
%K paraelectric
%K triple
%K phase point<br>反铁电/弛豫型铁电相界
%K 介电性能
%K 偏压热释电性质
%K 铁电-反铁电-顺电三相点
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=FE5FC8FA84C809CB&yid=C3ACC247184A22C1&vid=987EDA49D8A7A635&iid=DF92D298D3FF1E6E&sid=99C22CF1E519BF36&eid=F4403DA1034A7215&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=18