Ferroelectric properties of intergrowth Bi4Ti3O12-SrBi4Ti4O15 ceramics

被引：78

作者：

Noguchi, Y

Miyayama, M

Kudo, T

机构：

[1] Univ Tokyo, Sch Engn, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

[2] Univ Tokyo, Inst Ind Sci, Minato Ku, Tokyo 1068558, Japan

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 22期

关键词：

D O I：

10.1063/1.1328366

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ferroelectric intergrowth Bi4Ti3O12-SrBi4Ti4O15 has been demonstrated to have a large remanent polarization (2P(r)) of 30 muC/cm(2) and a high Curie temperature of 610 degreesC using bulk ceramics. The Rietveld analysis of the powder x-ray diffraction patterns showed that there are two kinds of Bi ions in Bi2O2 layers. One Bi ion in the Bi2O2 layers was displaced to the other Bi ion along the polarization direction by about 2% of parameter a, which would contribute to the large 2P(r). (C) 2000 American Institute of Physics. [S0003-6951(00)00548-9].

引用

页码：3639 / 3641

页数：3