Issue 14, 2002
From the journal:

Physical Chemistry Chemical Physics

Bond valence analysis of transport pathways in RMC models of fast ion conducting glasses

Stefan Adams*a  and  Jan Swensonb  

* Corresponding authors

a GZG Abt. Kristallographie, Universität Göttingen, Goldschmidtstr. 1, Göttingen, Germany
E-mail: sadams@gwdg.de
Fax: +49 551 399521
Tel: +49 551 393898

b Department of Applied Physics, Chalmers University of Technology, Göteborg, Sweden
E-mail: f5xjs@fy.chalmers.se
Fax: +46 31 7722090
Tel: +46 31 7725680

Abstract

The bond valence method is applied to analyze local structure models from reverse Monte Carlo (RMC) fits to diffraction data. While our earlier studies demonstrated that for a wide range of silver ion conducting glasses both absolute value and activation energy of the ionic conductivity may be predicted from the volume fraction of regions with a sufficiently low valence mismatch for the silver ion, this investigation focuses on the precautions that have to be considered in a generalization of the bond valence approach to ionic conductors with various types of mobile ions and especially to alkali-metal ion conducting glasses. The separate structure conductivity correlations observed for each mobile cation can be combined to a unified empirical relationship by employing the square root of the cation mass as a scaling factor.

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Article information

DOI
https://doi.org/10.1039/B111310K
Article type
Paper
Submitted
13 Dec 2001
Accepted
27 Feb 2002
First published
08 May 2002

Phys. Chem. Chem. Phys., 2002,4, 3179-3184

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Bond valence analysis of transport pathways in RMC models of fast ion conducting glasses

S. Adams and J. Swenson, Phys. Chem. Chem. Phys., 2002, 4, 3179 DOI: 10.1039/B111310K

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