Dielectric properties of pyrochlore (Bi1.5Zn0.5)(Nb0.5M1.5)O7 (M=Ti, Sn, Zr, and Ce) dielectrics

被引：35

作者：

Du, Huiling ^{[1
]}

Yao, Xi ^{[1
]}

Wang, Hong ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Elect Mat Res Lab, Xian 710049, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 21期

基金：

中国博士后科学基金;

关键词：

D O I：

10.1063/1.2200480

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Pyrochlore type systems with generic formula (Bi1.5Zn0.5)(Nb0.5M1.5)O-7 (M=Ti, Sn, Zr, and Ce) have been synthesized to investigate the influence of M on the dielectric properties. It was found that the incorporation of Sn or Ce resulted in a reasonably reduced dielectric constant. The incorporation of Zr and Ce has led to an appreciable increase in dc conductivity in high temperature. The dc conductivity diminishes as the size of M grows. Dielectric constants, temperature coefficient, and dc conductivity of series ceramics were studied and the relationships among composition, crystal structure, and properties were discussed. (c) 2006 American Institute of Physics.

引用

页数：3

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