Mixed alkali effect in the ac conductivity of glasses

Authors
Kulkarni, AR Lunkenheimer, P Loidl, A
Citation
Ar. Kulkarni et al., Mixed alkali effect in the ac conductivity of glasses, MATER CH PH, 63(1), 2000, pp. 93-97
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS CHEMISTRY AND PHYSICS
ISSN journal
02540584 → ACNP
Volume
63
Issue
1
Year of publication
2000
Pages
93 - 97
Database
ISI
SICI code
0254-0584(20000215)63:1<93:MAEITA>2.0.ZU;2-N
Abstract
The ac electrical conductivity of mixed alkali LiF-KF-Al(PO3)(3) glasses ha s been investigated using the complex conductivity formalism. For the first time, a mixed alkali effect has been detected in the ac conductivity of gl asses which also exhibit the classical mixed alkali effect in the de conduc tivity. The observed conductivity relaxations have been analyzed using thre e and four parameter functions. Jonscher's universal dielectric response yi elds the best description of the experimental data. (C) 2000 Elsevier Scien ce S.A. All rights reserved.