DC conductivity for hexaferrites of the Zn2-xCuxBa1Fe16O27 system

被引：34
作者：
El-Saadawy, M [1 ]
机构：
[1] Tanta Univ, Fac Educ, Dept Phys, Tanta, Egypt
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 219卷 / 01期
关键词：
DC conductivity; electrical properties; hexagonal ferrites; dielectric constant; Curie temperature;
D O I：
10.1016/S0304-8853(00)00034-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The DC electrical resistivity (rho) and the real parr of dielectric constant (epsilon) was studied for Cu substituted Zn2W ferrite as a function of temperature and composition. The experimental results showed that DC resistivity, dielectric constant, Curie temperature and activation energies for electrical conduction increase as Cu-ion substitution increases. The DC electrical conductivity increases as temperature increases. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码：69 / 72
页数：4
相关论文
共 10 条
[1]  
DU YW, 1985, 4 INT C FERR SAN F 2, V16, P567
[2]   Thermal conductivity and thermoelectric power of the Zn2-xCoxBaFe16O27 hexagonal ferrites system [J].
El-saadawy, M .
MATERIALS LETTERS, 1999, 39 (03) :149-152
[3]  
KITTEL C, 1976, INTRO SOLID STATE PH, P170
[4]   ON THE DISPERSION OF RESISTIVITY AND DIELECTRIC CONSTANT OF SOME SEMICONDUCTORS AT AUDIOFREQUENCIES [J].
KOOPS, CG .
PHYSICAL REVIEW, 1951, 83 (01) :121-124
[5]  
NAIK AB, 1985, INDIAN J PURE AP PHY, V23, P436
[6]   ELECTRICAL-CONDUCTIVITY OF SOME MIXED FERRITES AT CURIE-POINT [J].
REDDY, PV ;
PRATAP, KJ ;
RAO, TS .
CRYSTAL RESEARCH AND TECHNOLOGY, 1987, 22 (07) :977-980
[7]   THE EFFECT OF SILICA SUBSTITUTION ON ELECTRICAL-CONDUCTION IN NICKEL FERRITE [J].
SATYANARAYANA, R ;
MURTHY, SR .
CRYSTAL RESEARCH AND TECHNOLOGY, 1985, 20 (05) :701-704
[8]  
SUBBARAO EC, 1960, J AM CERAM SOC, V43, P199
[9]  
TAWFIK A, 1992, P INDIAN NAT SCI ACA, V3, P223
[10]  
ZHAI HR, 1985, 4 INT C FERR SAN F 2, V16, P555
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