Ferroelectric properties of (Ag, Li)(Nb, Ta)O3 ceramics

被引：35

作者：

Sakabe, Y ^{[1
]}

Takeda, T ^{[1
]}

Ogiso, Y ^{[1
]}

Wada, N ^{[1
]}

机构：

[1] Murata Mfg Co Ltd, Nagaokakyo, Kyoto 6178555, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2001年 / 40卷 / 9B期

关键词：

ferroelectric; (Ag; Li) (Nb; Ta)O-3; Ag(Nb; phase transition; D-E hysteresis; microstructure; SEM; TEM;

D O I：

10.1143/JJAP.40.5675

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The composition of (Ag1-yLiy)(Nb1-xTax)O-3 ceramics has been investigated by X-ray analysis and dielectric measurement. Li1+ was substituted into the Ag1+ lattice site of Ag(Nb, Ta)O-3 ceramics. The solubility limit of Li2O in Ag(Nb, Ta)O-3 was estimated to be in the range from 10 to 15 mol%. The crystal phase and dielectric properties of the (Ag1-yLiy)(Nb1-xTax)O(3)ceramics significantly changed with Li and Ta concentrations. The crystal phase changed from rhombohedral to monoclinic, tetragonal and cubic with temperature. Strong ferroelectricity was observed via D-E hysteresis measurement, and remanent polarization P-r = 23 muC/cm(2) and coercive field E-c = 22 kV/cm were obtained.

引用

页码：5675 / 5678

页数：4

共 8 条

[1] An X-ray diffraction study of AgNbO3 and comparison with NaNbO3 [J].