LIMITING BEHAVIOR OF AC CONDUCTIVITY IN IONICALLY CONDUCTING CRYSTALS AND GLASSES - A NEW UNIVERSALITY

被引：476

作者：

LEE, WK ^{[1
]}

LIU, JF ^{[1
]}

NOWICK, AS ^{[1
]}

机构：

[1] COLUMBIA UNIV,DIV MAT SCI,NEW YORK,NY 10027

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.67.1559

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ac conductivity sigma(omega) of three ionically conducting crystalline materials (NaCl:Zn2+, KTaO3:Co2+, H+, and CeO2:Gd3+) and two glasses have been studied over an unusually wide temperature range. In all cases, limiting power-law behavior [exponent s = 1 in sigma(omega) - sigma-0 + A-omega-s] is observed at relatively low temperatures. It is concluded that this limiting behavior is a universal phenomenon. Available theoretical explanations have been examined and found to be unsatisfactory.

引用

页码：1559 / 1561

页数：3

共 28 条

[1]

AGULLOLOPEZ F, 1988, POINT DEFECTS MATERI, pCH5

[2] ANOMALOUS LOW-TEMPERATURE THERMAL PROPERTIES OF GLASSES AND SPIN GLASSES [J].