AC conductivity and magnetoelectric effect in CuFe1.6Cr0.4O4-BaTiO3 composite ceramics

被引：88

作者：

Patankar, KK ^{[1
]}

Patil, SA ^{[1
]}

Sivakumar, KV ^{[1
]}

Mahajan, RP ^{[1
]}

Kolekar, YD ^{[1
]}

Kothale, MB ^{[1
]}

机构：

[1] Shivaji Univ, Dept Phys, Composite Mat Lab, Kolhapur 416004, Maharashtra, India

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2000年 / 65卷 / 01期

关键词：

ME composites; magnetoelectric effect; polaron conduction;

D O I：

10.1016/S0254-0584(00)00216-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CuFe1.6Cr0.4O4-BaTiO3 composites were prepared using conventional ceramic double sintering process. The presence of both the phases in composite was confirmed by X-ray diffraction (XRD). The variation of dielectric constant (epsilon') with frequency in the range 100 Hz to 1 MHz and also with temperature at a fixed frequency of 10 KHz was studied. AC conductivity was derived from dielectric constant (epsilon') and loss tangent (tan delta) measurements. The nature of conduction is discussed in the light of polaron hopping model. The static value of magnetoelectric conversion factor, i.e. DC(ME)(H) has been studied as a function of intensity of magnetic field. The maximum value of DC(ME)H was found to be 95.6 mu V cm(-1) Oe. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：97 / 102

页数：6

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