IONIC-CONDUCTION ASSOCIATED WITH POLARONIC HOPPING IN KTIOPO4 SINGLE-CRYSTAL

被引：29

作者：

CHOI, BC

KIM, JB

KIM, JN

机构：

[1] Department of Physics, Pusan National University, Pusan

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 84卷 / 11期

关键词：

D O I：

10.1016/0038-1098(92)90444-E

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The frequency dependent a.c. conductivity in KTiOPO4 single crystal, in the range from 10 Hz to 100 kHz, has been measured as a function of temperature between 200-degrees-C and 700-degrees-C. The behavior of sigma(ac) in the low frequency range well obeys the universal power law, sigma(ac) = sigma(dc) + Aomega(S). The temperature dependence of exponent s is described by the OLP model. It is evidently shown that ionic transport behavior in KTP may well be explained by the contribution of polaronic hopping between localized sites.

引用

页码：1077 / 1080

页数：4

共 24 条

[1] RELATIONSHIP BETWEEN THE TIME-DOMAIN KOHLRAUSCH-WILLIAMS-WATTS AND FREQUENCY-DOMAIN HAVRILIAK-NEGAMI RELAXATION FUNCTIONS [J].