Two contributions to the ac conductivity of alkali oxide glasses
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Authors
Sidebottom, David L.
Green, P. F.
Brow, R. K.
Issue Date
1995
Volume
74
Issue
25
Type
Journal Article
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Abstract
Although the frequency dependent conductivity of ion-containing glasses often displays scale invariant power law dispersion at high temperatures, the exponent increases to unity at lower temperatures. We report measurements of the conductivity of a series of alkali metaphosphate glasses including a mixed alkali composition and demonstrate that this temperature dependence results from the superposition of two power law dispersions originating from separate mechanism, and does not indicate any intrinsic change in scaling of the process which dominates at high temperatures.
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Citation
Sidebottom, D. L., Green, P. F., & Brow, P. K. (1995). Two contributions to the ac conductivity of alkali oxide glasses. Physical Review Letters, 74(25), 5068-5071.
Publisher
American Physical Society
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ISSN
1079-7114
0031-9007
0031-9007