Low frequency dispersion in ferroelectric KTa0.3Nb0.7O3 ceramic

被引：9

作者：

Khemakhem, H ^{[1
]}

Mnif, M

Ravez, J

Daoud, A

机构：

[1] Fac Sci Sfax, Lab Etat Solide, Sfax 3038, Tunisia

[2] ICMCB, F-33608 Pessac, France

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1999年 / 68卷 / 03期

关键词：

ferroelectric; dispersion; polarization; conductivity;

D O I：

10.1143/JPSJ.68.1031

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

KTa0.3Nb0.7O3 ceramic was prepared by sintering at high temperature with aid of LiF. The ferroelectric properties of this ceramic have been studied and its phase transition features have been revealed by the measurements of dielectric constant, loss, ac impedance and spontaneous polarization in the temperature range 300-700 K. This study affirms that this ceramic is a ferroelectric with a diffuse phase transition (FDPT) and that it presents a low frequency dispersion phenomenon at high temperature.

引用

页码：1031 / 1034

页数：4

共 15 条

[1] KTN AS A HOLOGRAPHIC STORAGE MATERIAL [J].