Synthesis and magnetic properties of ferrites spinels MgxCu1-xFe2O4

Polycrystalline Mg0.6Cu0.4Fe2O4 ferrites have been prepared using solid-state reaction technique. Their structural and magnetic properties have been studied, using X-ray diffraction and magnetic measurements. Using mean field theory and high-temperature series expansions (HTSE), extrapolated with th...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2012, Vol.407 (1), p.27-32
Main Authors: MOUNKACHI, O, HAMEDOUN, M, BELAICHE, M, BENYOUSSEF, A, MASROUR, R, EL MOUSSAOUI, H, SAJIEDDINE, M
Format: Article
Language:English
Subjects:
Condensed matter
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Domain effects, magnetization curves, and hysteresis
Exact sciences and technology
Exchange and superexchange interactions
Ferrites
Field theory
Magnetic measurement
Magnetic properties
Magnetic properties and materials
Magnetic resonances and relaxations in condensed matter, mössbauer effect
Magnetically ordered materials: other intrinsic properties
Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects
Mathematical analysis
Mössbauer effect
other γ-ray spectroscopy
Physics
Series expansion
Spinel
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Summary:Polycrystalline Mg0.6Cu0.4Fe2O4 ferrites have been prepared using solid-state reaction technique. Their structural and magnetic properties have been studied, using X-ray diffraction and magnetic measurements. Using mean field theory and high-temperature series expansions (HTSE), extrapolated with the pade approximants method, the magnetic properties of Mg1-xCuxFe2O4 have been studied. The nearest neighbor super-exchange interactions for intra-site and inter-site of the Mg1-xCuxFe2O4 ferrites spinels, in the range 0 less than or equal to x less than or equal to 1, have been computed using the probability approach, based on Mossbauer data. The Curie temperature Tc is calculated as a function of Mg concentration. The obtained theoretical results are in good agreement with experimental ones obtained by magnetic measurements.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2011.09.023