Structural correlations in the ac conductivity of ion-containing glasses

David L. Sidebottom, P. F. Green, R. K. Brow

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The power law dispersion of the conductivity in most ion-containing oxide glasses appears to be universal. This universality indicates that no correspondence exists between the degree of non-Debye behavior and the microscopic structure of a glass host. Despite its universal frequency dependence, we demonstrate how the ac conductivity defines a special length scale, L, that represents average diffusional displacement of an ion per activated jump and which can be correlated to properties of the glass host. We compare this length scale to the inter-ionic spacing and demonstrate how both increase with decreasing ion concentration. Although there is much evidence for universality, we suggest that the conductivity exponent may in fact be influenced by the 'dimensionality' of the conduction process.

Original languageEnglish
Pages (from-to)354-360
Number of pages7
JournalJournal of Non-Crystalline Solids
Volume222
StatePublished - Dec 11 1997

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Ions
Glass
conductivity
glass
ions
ion concentration
Oxides
spacing
exponents
conduction
oxides

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

Cite this

Structural correlations in the ac conductivity of ion-containing glasses. / Sidebottom, David L.; Green, P. F.; Brow, R. K.

In: Journal of Non-Crystalline Solids, Vol. 222, 11.12.1997, p. 354-360.

Research output: Contribution to journalArticle

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