Ferroelectric Curie temperature of BaTiO3 single crystals grown by a flux method

被引：11

作者：

Akishige, Y ^{[1
]}

Michiie, T ^{[1
]}

Tsunogae, T ^{[1
]}

机构：

[1] Shimane Univ, Fac Educ, Matsue, Shimane 6908504, Japan

来源：

FERROELECTRICS | 2002年 / 269卷

关键词：

K doped BaTiO3; single crystals; Curie temperature; dielectric properties;

D O I：

10.1080/00150190211154

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have succeeded in controlling concentration of K ions in the BaTiO3 single crystals by changing the solvent such as KF+BaCO3 or KF+TiO2 . The concentration of the cationic ions in the crystals has been chemically analyzed by EPMA; the K ions in the crystals, BayKxTiO3 , change continuously from x=0.01 (y=1.01) to 0.03 (y=0.99), and the Curie temperature T-c decreases from 397K to 375K with x. The dielectric properties around T-c depend on the amount of K-ions. By annealing the crystal at 1000degreesC in air, the dielectric properties change remarkably on the K-rich crystals.

引用

页码：249 / 254

页数：6