Structural and magnetic properties of chromium-doped ferrite nanopowders

This paper reports on a study of Cr 3+-doped nanosized Ni–Zn ferrites produced by combustion reaction, and evaluates their morphological and magnetic properties. The powders were characterized by X-ray diffraction (XRD) and SEM and magnetic properties. All the compositions showed the formation of th...

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Bibliographic Details
Published in:Journal of alloys and compounds 2009-08, Vol.483 (1), p.655-657
Main Authors: Costa, A.C.F.M., Silva, V.J., Ferreira, H.S., Costa, A.A., Cornejo, D.R., Kiminami, R.H.G.A., Gama, L.
Format: Article
Language:English
Subjects:
Chromium
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Magnetic properties
Magnetic properties and materials
Magnetic properties of nanostructures
Materials science
Morphology
Nanopowders
Nanoscale materials and structures: fabrication and characterization
Ni–Zn ferrites
Physics
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Summary:This paper reports on a study of Cr 3+-doped nanosized Ni–Zn ferrites produced by combustion reaction, and evaluates their morphological and magnetic properties. The powders were characterized by X-ray diffraction (XRD) and SEM and magnetic properties. All the compositions showed the formation of the inverse spinel phase of Ni–Zn ferrite. The average crystallite size ranged from 21 to 26 nm. The saturation magnetization was found to be in the range of 53–43 emu/g. The increase in Cr 3+ concentration in the Ni–Zn ferrite caused a reduction in hysteresis losses and a slight reduction in the saturation magnetization.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2008.08.129