Universal approach for scaling the a.c. conductivity in ionic glasses
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Authors
Sidebottom, David L.
Issue Date
1999
Type
Journal Article
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Abstract
In a recent Letter, Roling et al. [Phys. Rev. Lett. 78, 2160 (1997)] proposed a novel scaling approach, requiring no arbitrary parameters, for the analysis of the ac conductivity resulting from ionic motion in glasses. However, this approach cannot be applied to alkali germanate glasses whose alkali content varies by more than a decade, since changes which occur in the ion hopping length that accompany the changing alkali content are not incorporated. Here, I show that these changes can be incorporated into a universally valid approach which successfully scales the ac conductivity of sodium germanate glasses as well as two additional ionic systems without the introduction of arbitrary parameters.
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Citation
Sidebottom, D. L. (1999). Universal approach for scaling the a.c. conductivity in ionic glasses. Physical Review Letters, 82(18), 3653-3656
Publisher
American Physical Society
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PubMed ID
DOI
ISSN
1079-7114
0031-9007
0031-9007