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Correlation between high ionic conduction and anomaly of dielectric property

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
86
Issue
8
Identifiers
DOI: 10.1016/0038-1098(93)90097-7
Disciplines
  • Chemistry

Abstract

Abstract In cubic and near-cubic ionic and semiconducting compounds, we can find two correlationships among the optical dielectric constant ϵ∞, short-range and long-range forces. In the relationships, the chemical valence of high ionic conductors takes the value shifted from the formal value. The shift can be explained from the effect of d-electron energy level near the band gap. A linear relationship of ln (ϵ∞) to ln ( T c ) is found for fast-ionic conductors. From these relations, intimate correlation of the band gap energy to the fast-ionic conduction is suggested.

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