In this study we have investigated structural attribute of Co+2 doped
MgFe2O4. Synthesis of Mg1-xCoxFe2O4 ferrite was carried out using
co-precipitation method. The formation of spinal ferrite was confirmed
through X-ray diffraction. Lattice parameter found to be 8.376748 ? and
crystallite sizes in the range 180-365 ? are observed. Various parameters
like dislocation density (?D); mechanical properties (strain), Hopping
length {tetrahedral site (LA) and octahedral site (LB)}, Bond length (A-O
and B-O), and Ionic radii (rA and rB) were reported. The W-H plot and
Size-Strain plots were extensively studied and the results have been
correlated.
The present study reports the dielectric and DC resistivity studies of the Cd doped Co‐Ni ferrites synthesized by solid state reaction method. The XRD studies confirm the cubic spinel structure of the samples. The substitution of the cadmium in the ferrite system significantly influences the AC conductivity, involvement of the grain boundary involvement in conduction. The variations of dielectric constant and dielectric loss for all the samples are studied as a function of frequency and show an increase with doping concentration. The DC resistivity studies confirm the semiconducting nature of the synthesized ferrites. The activation energy is observed to be in the range of (0.534–0.629 eV).
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