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首页> 外文期刊>Ferroelectrics: Letters Section >The Problem of Phase Transitions in PZT Based Solid Solutions, Pb(Mg_(1/3)Nb_(2/3))O_3, Pb (In_1/2)Nb_(1/2))O_3 and 'Relaxor Ferroelectricity.' 1. Experimental Results and Phase Diagrams for PZT Based Solid Solutions
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The Problem of Phase Transitions in PZT Based Solid Solutions, Pb(Mg_(1/3)Nb_(2/3))O_3, Pb (In_1/2)Nb_(1/2))O_3 and 'Relaxor Ferroelectricity.' 1. Experimental Results and Phase Diagrams for PZT Based Solid Solutions

机译：在基于PZT的固溶体，Pb（Mg_（1/3）Nb_（2/3））O_3，Pb（In_1 / 2）Nb_（1/2））O_3和“弛豫铁电”中的相变问题。 1.基于PZT的固溶体的实验结果和相图

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摘要

In the present paper the phenomena predicted in [1] for substances with coexisting FE and AFE phases coexistence is experimentally shown. The examples of PZT-based solid solutions are investigated. The solid solutions for which FE and AFE states have equal or close energy stability possess the following experimental properties: -- a high degree of (paraelectric) PE phase transition diffuseness; -- an essential dispersion of permittivity in the region of diffuse maximum of the dependences epsilon'(T) and epsilon"(T) and fulfilment of the Fogel-Fulcher law; -- an increase of the measuring AC field amplitude E_0 leads to a linear decrease of T'_m and to an increase of epsilon'(T'_m); the tangent of T'_m (E_0) dependence decreases with an increase of AC field frequency; -- the presence of effects which point to the existence of polar phase domains at temperatures essentially higher than T'_m and T"_m; -- dependence of their properties on the sample's history; -- a long-duration relaxation.
机译：在本文中，通过实验显示了[1]中预测的具有FE和AFE相共存的物质的现象。研究了基于PZT的固溶体的实例。 FE和AFE态具有相等或接近的能量稳定性的固溶体具有以下实验性质：-高度（顺电）PE相变扩散; -介电常数epsilon'（T）和epsilon“（T）的弥散最大值区域中的介电常数的基本色散，并且满足Fogel-Fulcher定律;-测量的交流场振幅E_0的增加导致了T'_m的线性减小和epsilon'（T'_m）的线性增大; T'_m（E_0）依赖关系的切线随AC磁场频率的增加而减小;-效应的存在表明存在在基本上高于T'_m和T“ _m的温度下的极性相域; -它们的性质取决于样品的历史; -长时间的放松。

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