Magnetic and dielectric properties of Mg1+x Mnx, Fe2−2x, O4 ferrite system

Ferrites with the general formula Mg₁₊ₓMnₓFe₂₋₂ₓO₄(where x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 and 0.9) were prepared by the standard ceramic technique and studied by means of X-ray diffraction, magnetization, a.c. susceptibility and dielectric constant measurements. The X-ray analysis con...

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Bibliographic Details
Published in:Journal of materials science 2005, Vol.40 (2), p.423-428
Main Authors: Pandit, A. A, Shitre, A. R, Shengule, D. R, Jadhav, K. M
Format: Article
Language:English
Subjects:
ceramics
Curie temperature
Dielectric properties
Dielectric strength
ferrimagnetic materials
Ferrimagnetism
Ferrites
Magnetic permeability
Magnetic properties
Magnetization
Materials science
Permittivity
Temperature
X ray analysis
X-radiation
X-ray diffraction
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Summary:Ferrites with the general formula Mg₁₊ₓMnₓFe₂₋₂ₓO₄(where x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 and 0.9) were prepared by the standard ceramic technique and studied by means of X-ray diffraction, magnetization, a.c. susceptibility and dielectric constant measurements. The X-ray analysis confirmed the single-phase formation of the samples. The lattice parameter is found to increase up to x = 0.3 and thereafter it decreases as x increases. The cation distribution has been studied by X-ray analysis and magnetization. Magnetization results exhibit collinear ferrimagnetic structure for x ≤ 0.3 and thereafter structure changes into non-collinear for x > 0.3. Curie temperature (TC) obtained from a.c. susceptibility data decreases with increasing x. The dielectric constant (ε′), loss tangent (tan δ) show strong frequency dependence.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-005-6099-x