Volume 6, Issue 5, October 2017, Page: 57-65
Dielectrics Properties and Temperature Dependence of Electron Spin Resonance of Doped Molybdenum CCTO
Séka Simplice Kouassi, Department of Physics Chemistry Mathematics and Computer Science, Jean Lorougnon GUEDE University, Daloa, Ivory Coast
Jean-Pierre Sagou Sagou, Laboratory of Materials Inorganics Chemistry, Félix Houphouët BOIGNY University, Abidjan, Ivory Coast
Cécile Autret-Lambert, Greman Umr 7347 Laboratory, François Rabelais University, Tours, France
Sonia Didry, Greman Umr 7347 Laboratory, François Rabelais University, Tours, France
Marc Lethiecq, Greman Umr 7347 Laboratory, François Rabelais University, Tours, France
Received: Jul. 18, 2017;       Accepted: Jul. 28, 2017;       Published: Aug. 31, 2017
DOI: 10.11648/j.am.20170605.12      View  2232      Downloads  139
The role perovskite-type CaCu3Ti4O12 (CCTO) dope by molybdenum (Mo) on the microstructure, dielectric properties and the temperature dependence of Electron Spin Resonance (ESR) has been investigated in this work. The solid state reaction has been used to synthesize CCTO ceramic samples. Substitution on Ti-site by Mo helps to increase the grain size of samples and therefore increase the dielectric constant according to the IBLC theory. There is no great difference between the ESR spectra of pure CCTO and CCTO doped by Molybdenum as a function of temperature. For a given temperature, ESR signal spectrum intensity increases as the Mo content increases. The magnetic susceptibility varies according to the composition only when the temperature is higher than 70K. The antiferromagnetic character of the CCTO decreases when the Mo content increases.
Ceramics, Solid State Reaction Method, Dielectric Properties, Magnetic Properties, Electron Spin Resonance
To cite this article
Séka Simplice Kouassi, Jean-Pierre Sagou Sagou, Cécile Autret-Lambert, Sonia Didry, Marc Lethiecq, Dielectrics Properties and Temperature Dependence of Electron Spin Resonance of Doped Molybdenum CCTO, Advances in Materials. Vol. 6, No. 5, 2017, pp. 57-65. doi: 10.11648/j.am.20170605.12
Copyright © 2017 Authors retain the copyright of this article.
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