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Published in: Journal of Electroceramics 4/2012

01-12-2012

Dielectric and nonlinear electrical behaviors of Ce-doped CaCu3Ti4O12 ceramics

Authors: Bo Cheng, Yuan-Hua Lin, Wei Deng, Jingnan Cai, Jinle Lan, Ce-Wen Nan, Xi Xiao, Jinliang He

Published in: Journal of Electroceramics | Issue 4/2012

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Abstract

We present a remarkable effect of Ce doping on the dielectric and nonlinear electric properties of CaCu3Ti4O12 ceramics. Microstructure analysis indicates that Ce-doped CCTO ceramics are composed of large and small grains. Our results indicate that only 2.5 at. % Ce doping can suppress the dielectric permittivity in CaCu3Ti4O12 by up to two orders of magnitude (from 104 to 102 ), and the nonlinear varistor characteristics disappear completely, which may be due mainly to the Cu+ ions’ disappearing caused by the Ce doping.

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Metadata
Title
Dielectric and nonlinear electrical behaviors of Ce-doped CaCu3Ti4O12 ceramics
Authors
Bo Cheng
Yuan-Hua Lin
Wei Deng
Jingnan Cai
Jinle Lan
Ce-Wen Nan
Xi Xiao
Jinliang He
Publication date
01-12-2012
Publisher
Springer US
Published in
Journal of Electroceramics / Issue 4/2012
Print ISSN: 1385-3449
Electronic ISSN: 1573-8663
DOI
https://doi.org/10.1007/s10832-012-9768-6

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