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Journal of Materials Science

, Volume 44, Issue 10, pp 2483–2488 | Cite as

Structural characterization of the ac conductivity in Ag ion conducting glasses

  • J. L. NdeugueuEmail author
  • M. Aniya
Article

Abstract

The material trends in various silver ion conducting glasses have been studied recently by focusing on the relationship between the first sharp diffraction peak (FSDP) wave number Q, and the fitting parameters of the ac conductivity, precisely the ratio (log A)/n, where A and n represent the pre-exponential factor and the power law exponent of Jonscher’s law, respectively. In the present paper, a model for the FSDP wave number dependence of the ratio (log A)/n has been proposed and a good agreement has been found with the experiments. By using the concept of bond fluctuation in superionic conductors, the results have been successfully explained, leading to the conclusion that the universal aspect of the power law reflects the universal pattern of the potential barrier at intermediate length scales. The result reconfirms that the ion transport in glasses is intimately related with the FSDP wave number.

Keywords

Ag2S Ag2O Superionic Conductor Glassy System Frequency Dependent Conductivity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors gratefully acknowledge the Japan Society for the Promotion of Science for the Grant-in-Aid for Scientific Research (No.19560014), and the Ministry of Education, Culture, Sports, Science, and Technology of Japan for the Grant-in-Aid for Scientific Research on Priority Area, “Nanoionics (439)” and for the MONBUKAGAKUSHO-Scholarship.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of Physics, Graduate School of Science and TechnologyKumamoto UniversityKumamotoJapan

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