Magnetic, dielectric, and complex impedance properties of nanocrystalline Mn–Zn ferrites prepared by novel combustion method

The electromagnetic and micro-structural properties of nanocrystalline spinel ferrite Mn xZn 1 − x Fe 2O 4 (x = 0.0–1.0) prepared by the novel route of combustion method were investigated. The microstructure and morphology were characterized by X-ray diffraction and scanning electron microscopy, res...

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Bibliographic Details
Published in:Thin solid films 2011-09, Vol.519 (23), p.8303-8306
Main Authors: Syue, Ming-Ru, Wei, Fu-Jin, Chou, Chan-Shin, Fu, Chao-Ming
Format: Article
Language:English
Subjects:
Combustion
Combustion method
Complex impedance
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Devices
Dielectric properties
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Ferrites
Impedance
Magnetic material
Magnetic properties
Magnetic properties and materials
Magnetic properties of nanostructures
Magnetization
Manganese
Mn–Zn ferrite
Nanocrystals
Nanoparticle
Permittivity (dielectric function)
Physics
Saturation magnetization
Spinel
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Summary:The electromagnetic and micro-structural properties of nanocrystalline spinel ferrite Mn xZn 1 − x Fe 2O 4 (x = 0.0–1.0) prepared by the novel route of combustion method were investigated. The microstructure and morphology were characterized by X-ray diffraction and scanning electron microscopy, respectively. The magnetic properties were measured using vibrating sample magnetometer. The analysis indicates that the permittivity, saturated magnetization and coercivity increase as the content of manganese rises. Further, the analysis of complex impedance spectra by an equivalent circuit model was used to investigate the AC electrical conduction mechanism. The results show that as-synthesized Mn–Zn ferrites with low conductivity and good magnetic properties have excellent potential for applications in electromagnetic devices.
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2011.04.003