Impedance spectroscopy study of strontium modified lead zirconate titanate ceramics

被引：106

作者：

Sen, Shrabanee ^{[1
]}

Choudhary, R. N. P.

Tarafdar, Abhijit

Pramanik, P.

机构：

[1] Natl Met Lab, Jamshedpur 831007, Bihar, India

[2] Indian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India

[3] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

来源：

JOURNAL OF APPLIED PHYSICS | 2006年 / 99卷 / 12期

关键词：

D O I：

10.1063/1.2206850

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

(Pb0.97Sr0.03)(Zr0.05Ti0.95)O-3 nanocrystalline powder was prepared by a solution based chemical method. Preliminary x-ray diffractogram analysis of some aspects of crystal structure showed that a single-phase compound was formed exhibiting a tetragonal system. Impedance spectroscopy study showed the presence of both bulk and grain boundary effects in the material, which is also evident from the scanning electron microscope micrographs. The bulk conductivity indicates an Arrhenius-type thermally activated process. The ac conductivity spectrum obeyed the Jonscher power law. Modulus analysis indicated the possibility of hopping mechanism for electrical processes in the system with a nonexponential type of conductivity relaxation.

引用

页数：8

共 31 条

[1] Applicability of the brick layer model to describe the grain boundary properties of strontium titanate ceramics [J].