NATURE OF THE LINEAR FREQUENCY-DEPENDENT AC-CONDUCTIVITY IN GLASSY IONIC CONDUCTORS

被引：29

作者：

STROM, U ^{[1
]}

NGAI, KL ^{[1
]}

KANERT, O ^{[1
]}

机构：

[1] UNIV DORTMUND,DEPT PHYS,W-4600 DORTMUND 50,GERMANY

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1991年 / 131卷

关键词：

D O I：

10.1016/0022-3093(91)90716-J

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A very common observation for glassy ionic conductors is an ac conductivity which depends linearly on frequency. Another common feature of these glasses is an NMR spin-relaxation rate 1/T1 which has an approximately linear Larmor frequency and a slightly stronger than linear temperature dependence. It is proposed that these two properties are related and stem from a common physical mechanism. Information about the nature of this mechanism and the type of excitations involved in these processes can be gained from similar observations in non-glassy, but disordered ionic conductors, such as Na-beta-Alumina.

引用

页码：1011 / 1017

页数：7

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