Memory effect in [001] poled 0.92Pb(Zn1/3Nb2/3)O3-0.08PbTiO3 single crystals -: art. no. 192909

被引：7

作者：

Shen, MR ^{[1
]}

Cao, WW

机构：

[1] Suzhou Univ, Dept Phys, Suzhou 215006, Peoples R China

[2] Penn State Univ, Dept Math, University Pk, PA 16802 USA

[3] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 19期

基金：

中国国家自然科学基金; 美国国家卫生研究院;

关键词：

D O I：

10.1063/1.1922575

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have conducted dielectric and pyroelectric measurements in [001] poled rhombohedral phase 0.92Pb(Zn1/3Nb2/3)O-3-0.08PbTiO(3) single crystals from room temperature to 250 degrees C. An interesting poling history dependence has been revealed from the experimental results. Compared with room-temperature poled samples, crystals poled via the field-cooling method have a much lower rhombohedral-to-tetragonal phase transition temperature and have enhanced spontaneous polarization while heating up to the tetragonal phase. Such phenomena may be explained by the memory effect of dipolar defect alignment in the sample poled by the field-cooling method. (c) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

共 10 条

[1] Dielectric properties of (PMN)(1-x)(PT)x single crystals for various electrical and thermal histories [J].