Impedance spectroscopy study of strontium modified lead zirconate titanate ceramics

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作者：
Sen, Shrabanee [1 ]
Choudhary, R.N.P. [2 ]
Tarafdar, Abhijit [3 ]
Pramanik, P. [3 ]
机构：
[1] National Metallurgical Laboratory, Jamshedpur 831007, India
[2] Department of Physics and Meteorology, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India
[3] Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India
来源：
Journal of Applied Physics | 2006年 / 99卷 / 12期
关键词：
(Pb0.97Sr0.03)(Zr0.05Ti 0.95)O3 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. © 2006 American Institute of Physics;
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