Experimental study on temperature features for polar-nano-regions among 0.72Pb(Mg1/3Nb2/3)O3-0.28PbTiO3 relaxor ferroelectrics

GUO Zhi YAN Rui ZHANG Xiangzhi TAI Renzhong

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Experimental study on temperature features for polar-nano-regions among 0.72Pb(Mg_1/3Nb_2/3)O₃-0.28PbTiO₃ relaxor ferroelectrics

更新时间：2021-03-12

- Experimental study on temperature features for polar-nano-regions among 0.72Pb(Mg_1/3Nb_2/3)O₃-0.28PbTiO₃ relaxor ferroelectrics
- NUCLEAR TECHNIQUES Issue 10, (2007)
- 作者机构：
  
  1. 中国科学院上海应用物理研究所
  2. 中国科学院上海应用物理研究所,上海,201800
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482
- Published：01 October 2007
- 稿件说明：
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[1]郭智,严睿,张祥志,邰仁忠.0.72Pb(Mg_(1/3)Nb_(2/3))O_3-0.28PbTiO_3弛豫铁电体中纳米极化区域温度特征实验研究[J].核技术,2007(10):801-804.

GUO Zhi YAN Rui ZHANG Xiangzhi TAI Renzhong. Experimental study on temperature features for polar-nano-regions among 0.72Pb(Mg_1/3Nb_2/3)O₃-0.28PbTiO₃ relaxor ferroelectrics[J]. Nuclear techniques, 2007, (10): 801-804.
[1]郭智,严睿,张祥志,邰仁忠.0.72Pb(Mg_(1/3)Nb_(2/3))O_3-0.28PbTiO_3弛豫铁电体中纳米极化区域温度特征实验研究[J].核技术,2007(10):801-804. DOI：

GUO Zhi YAN Rui ZHANG Xiangzhi TAI Renzhong. Experimental study on temperature features for polar-nano-regions among 0.72Pb(Mg_1/3Nb_2/3)O₃-0.28PbTiO₃ relaxor ferroelectrics[J]. Nuclear techniques, 2007, (10): 801-804. DOI：

摘要

利用同步辐射X射线小角散射实验方法

研究了0.72Pb（Mg1/3Nb2/3）O3-0.28PbTiO3弛豫铁电体中纳米极化区域（PNRs）在自发状态下随温度变化的响应特性。得到在自发状态下

PNRs从Tm（介电系数最大值所在温度）到Tm以上100K有沿轴向的稳定关联结构

该关联结构在Tm以上300K完全消失。结合以前的实验结果

得到PNRs在Tm附近约±20K的温度区间内存在的沿对角方向的周期性关联结构是材料高性能的来源之一。

Abstract

X-ray small angle scattering experiment was conducted on a synchrotron radiation facility to study tem-perature-dependence features of polar-nano-regions(PNRs) among 0.72Pb(Mg1/3Nb2/3) O3-0.28PbTiO3 relaxor-based ferroelectrics in a spontaneous state. PNRs have stable axially-aligned quasi-periodic correlation structure from Tm to temperature of 100K above Tm

this correlation structure disappears completely at temperature of 300K above Tm. Combined with the previous experimental results

the diagonally-aligned periodic correlation structure at temperature range of ±20K near Tm is considered as origin of high performance for this material.

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Related Author

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TAI Renzhong

Related Institution

Shanghai Advanced Research Institute, Chinese Academy of Sciences

Shanghai Institute of Applied Physics, Chinese Academy of Sciences

ShanghaiTech University

University of Shanghai for Science and Technology

National Synchrotron Radiation Laboratory, University of Science and Technology of China

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