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Electrical and magnetic properties of Co substituted MnZnFe 2 O 4
Author(s) -
Zubair Ahmad,
Siddiqui Saima A.,
Khan F. A.,
Alim Mohammad A.
Publication year - 2012
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201228486
Subject(s) - materials science , crystallite , nuclear magnetic resonance , microstructure , permeability (electromagnetism) , electron paramagnetic resonance , electrical impedance , condensed matter physics , analytical chemistry (journal) , composite material , chemistry , electrical engineering , physics , chromatography , biochemistry , membrane , metallurgy , engineering
The electrical and magnetic properties of polycrystalline as‐sintered and annealed Co 0.3 Mn 0.2 Zn 0.5 Fe 2 O 4 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.