Electrical and magnetic properties of Co substituted MnZnFe2O4

被引:4
作者
Zubair, Ahmad [1 ]
Siddiqui, Saima A. [1 ]
Khan, F. A. [2 ]
Alim, Mohammad A. [3 ]
机构
[1] Bangladesh Univ Engn & Technol, Dept Elect & Elect Engn, Dhaka 1000, Bangladesh
[2] Bangladesh Univ Engn & Technol, Dept Phys, Dhaka 1000, Bangladesh
[3] Alabama A&M Univ, Dept Elect Engn & Comp Sci, Huntsville, AL 35762 USA
来源
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2012年 / 209卷 / 12期
关键词
complex plane; impedance; magnetic properties; resonance; SPINEL; MN; NANOPARTICLES; GROWTH;
D O I
10.1002/pssa.201228486
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electrical and magnetic properties of polycrystalline as-sintered and annealed Co0.3Mn0.2Zn0.5Fe2O4 prepared by using conventional electroceramic processing steps in the laboratory are presented. The microstructures are examined via scanning electron micrographs and energy dispersive X-ray (EDX) analysis. The ac electrical behavior represented via complex plane plots in the frequency range 160-211 MHz reveals inductive contribution via resonance originated within the material system. The ac permeability is presented in the frequency range 50-300 MHz affirmed resonance behavior. The inductive response in the complex planes (impedance Z* and modulus M*) reflecting resonance behavior due to magnetic softness is obvious around 140 MHz whereas in the permeability dispersion negative domain is observed at about 150 MHz attributing to the spin rotation. (C) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码:2441 / 2448
页数:8
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