Effects of temperature on hydrostatic pressure-induced FE-AFE phase transition in PbLa(Zr,Sn,Ti)O_3 ceramics  

作　　者：XU Zhuo, FENG Yujun, ZHENG Shuguang, JIN An, WANG Fanglin & YAO XiElectronic Materials Research Laboratory (EMRL), Xi’an Jiaotong University, Xi’an 710049, China 

出　　处：《Chinese Science Bulletin》2001年第18期1574-1578,共5页

基　　金：This work was supported by the National Defensive Pre-research Fund of China (Grand No. 98J12.1.9).

摘　　要：Hydrostatic pressure-induced ferroelectric-antiferroelectric (FE-AFE) phase transition and the pressure dependence of dielectric properties in La-doped Pb(Zr,Sn, Ti)O3 ceramics were researched; the effects of temperature on hydrostatic pressure-induced FE-AFE phase transition and dielectric properties of the samples were studied. It was found that the temperature made the FE-AFE phase transition pressure decrease, and there existed the behavior of dielectric frequency dispersion and phase transition diffusion in the dielectric-pressure spectrum. These phenomena were very useful to enrich and develop the knowledge on the diffused phase transition behavior of polycomponent relaxor ferroelectric.Hydrostatic pressure-induced ferroelectric-antiferroelectric (FE-AFE) phase transition and the pressure dependence of dielectric properties in La-doped Pb(Zr,Sn, Ti)O3 ceramics were researched; the effects of temperature on hydrostatic pressure-induced FE-AFE phase transition and dielectric properties of the samples were studied. It was found that the temperature made the FE-AFE phase transition pressure decrease, and there existed the behavior of dielectric frequency dispersion and phase transition diffusion in the dielectric-pressure spectrum. These phenomena were very useful to enrich and develop the knowledge on the diffused phase transition behavior of polycomponent relaxor ferroelectric.

关 键 词：HYDROSTATIC PRESSURE PRESSURE-INDUCED PHASE TRANSITION FE-AFE PHASE TRANSITION dielectric-pressure spectrum. 

分 类 号：O482.41[理学—固体物理]