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Dielectrics Properties and Temperature Dependence of Electron Spin Resonance of Doped Molybdenum CCTO

Received: 18 July 2017     Accepted: 28 July 2017     Published: 31 August 2017
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Abstract

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.

Published in Advances in Materials (Volume 6, Issue 5)
DOI 10.11648/j.am.20170605.12
Page(s) 57-65
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Ceramics, Solid State Reaction Method, Dielectric Properties, Magnetic Properties, Electron Spin Resonance

References
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Cite This Article
  • APA Style

    Séka Simplice Kouassi, Jean-Pierre Sagou Sagou, Cécile Autret-Lambert, Sonia Didry, Marc Lethiecq. (2017). Dielectrics Properties and Temperature Dependence of Electron Spin Resonance of Doped Molybdenum CCTO. Advances in Materials, 6(5), 57-65. https://doi.org/10.11648/j.am.20170605.12

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    ACS Style

    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. Adv. Mater. 2017, 6(5), 57-65. doi: 10.11648/j.am.20170605.12

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    AMA Style

    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. Adv Mater. 2017;6(5):57-65. doi: 10.11648/j.am.20170605.12

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  • @article{10.11648/j.am.20170605.12,
      author = {Séka Simplice Kouassi and Jean-Pierre Sagou Sagou and Cécile Autret-Lambert and Sonia Didry and Marc Lethiecq},
      title = {Dielectrics Properties and Temperature Dependence of Electron Spin Resonance of Doped Molybdenum CCTO},
      journal = {Advances in Materials},
      volume = {6},
      number = {5},
      pages = {57-65},
      doi = {10.11648/j.am.20170605.12},
      url = {https://doi.org/10.11648/j.am.20170605.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20170605.12},
      abstract = {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.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Dielectrics Properties and Temperature Dependence of Electron Spin Resonance of Doped Molybdenum CCTO
    AU  - Séka Simplice Kouassi
    AU  - Jean-Pierre Sagou Sagou
    AU  - Cécile Autret-Lambert
    AU  - Sonia Didry
    AU  - Marc Lethiecq
    Y1  - 2017/08/31
    PY  - 2017
    N1  - https://doi.org/10.11648/j.am.20170605.12
    DO  - 10.11648/j.am.20170605.12
    T2  - Advances in Materials
    JF  - Advances in Materials
    JO  - Advances in Materials
    SP  - 57
    EP  - 65
    PB  - Science Publishing Group
    SN  - 2327-252X
    UR  - https://doi.org/10.11648/j.am.20170605.12
    AB  - 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.
    VL  - 6
    IS  - 5
    ER  - 

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Author Information
  • Department of Physics Chemistry Mathematics and Computer Science, Jean Lorougnon GUEDE University, Daloa, Ivory Coast

  • Laboratory of Materials Inorganics Chemistry, Félix Houphou?t BOIGNY University, Abidjan, Ivory Coast

  • Greman Umr 7347 Laboratory, Fran?ois Rabelais University, Tours, France

  • Greman Umr 7347 Laboratory, Fran?ois Rabelais University, Tours, France

  • Greman Umr 7347 Laboratory, Fran?ois Rabelais University, Tours, France

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