STUDIES ON ELECTRICAL-CONDUCTION IN BI4SRTI4O15

被引：23

作者：

JAMES, AR

KUMAR, GS

BHIMASANKARAM, T

SURYANARAYANA, SV

机构：

[1] Department of Physics, Osmania University, Hyderabad

来源：

BULLETIN OF MATERIALS SCIENCE | 1994年 / 17卷 / 06期

关键词：

FERROELECTRICS; ELECTRICAL CONDUCTIVITY; POLING; DIELECTRIC CONSTANT;

D O I：

10.1007/BF02757571

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ferroelectric Bi4SrTi4O15 has been synthesized and a study of the electrical (AC) conductivity was made on both poled and unpoled samples in the frequency range from 100 Hz to 1 MHz and from room temperature to 550 degrees C. In the case of unpoled samples the activation energy was found to be 0.54 eV and subsequent to poling it was lowered to 0.39 eV indicating an increased conductivity after poling. Further the conductivity increased with increasing frequency and temperature. DC conductivity measurements were also carried out. Dielectric measurements indicate a peak in the dielectric constant at 530 degrees C.

引用

页码：951 / 958

页数：8