Mixed alkali effect in the ac conductivity of glasses

被引：31

作者：

Kulkarni, AR ^{[1
]}

Lunkenheimer, P

Loidl, A

机构：

[1] Indian Inst Technol, Dept Met Engn & Mat Sci, Mumbai 400076, India

[2] Univ Augsburg, D-86135 Augsburg, Germany

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2000年 / 63卷 / 01期

关键词：

mixed alkali effect; ac conductivity; glasses; dielectric properties;

D O I：

10.1016/S0254-0584(99)00212-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ac electrical conductivity of mixed alkali LiF-KF-Al(PO3)(3) glasses has been investigated using the complex conductivity formalism. For the first time, a mixed alkali effect has been detected in the ac conductivity of glasses which also exhibit the classical mixed alkali effect in the de conductivity. The observed conductivity relaxations have been analyzed using three and four parameter functions. Jonscher's universal dielectric response yields the best description of the experimental data. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：93 / 97

页数：5

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