ON THE ELECTRICAL-CONDUCTIVITY OF PR-RE-BA-CU-O (RE = ER, YB, LU, TM) COMPOUNDS IN ORTHORHOMBIC PHASE

被引：7
|
作者：
TRIBERIS, GP
GUSKOS, N
SVOBODA, P
VASEK, P
ZEMANOVA, D
KOUFOUDAKIS, A
MITROS, C
GAMARISEALE, H
NIARCHOS, D
机构：
[1] CZECHOSLOVAK ACAD SCI, INST PHYS, CS-16200 PRAGUE 6, CZECHOSLOVAKIA
[2] NATL RES CTR DEMOCRITOS, INST MAT SCI, GR-15310 ATHENS, GREECE
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 1992年 / 171卷 / 02期
关键词：
D O I：
10.1002/pssb.2221710217
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Experimental results showing the temperature dependence of the conductivity of a variety of Pr-RE-Ba-Cu-O (RE = Er, Yb, Lu, and Tm) compounds are presented. The semiconducting behavior of the conductivity observed is analysed using ln sigma approximately T-2/5 and ln sigma approximately T-1/4 laws suggested, using the small-polaron hopping model by Triberis et al., for the high- and low-temperature regime, respectively. The agreement of the experimental data with these models is very satisfactory, giving a meaningful interpretation of the transport mechanism of these materials.
引用
收藏
页码：469 / 475
页数：7
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