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Effect of Zn substitution on the magnetic properties of Mg1−xZnxFe2O4 ferrites |
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| Authors: | M. Manjurul Haque M. Huq M.A. Hakim |
| Affiliation: | aDepartment of Applied Physics, Electronics and Communication Engineering, Islamic University, Kushtia 7003, Bangladesh;bDepartment of Physics, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh;cMaterials Science Division, Atomic Energy Centre, Ramna, Dhaka 1000, Bangladesh |
| Abstract: | Polycrystalline Mg1−xZnxFe2O4 (x=0.0–0.6) ferrites have been prepared using solid-state reaction technique. The X-ray diffraction analysis revealed that the samples crystallize in a single-phase cubic spinel structure. The lattice parameter increases linearly with increase in zinc content obeying Vegard's law. The continuous decrease in Curie temperature (Tc) with an increase in Zn content is attributed to the weakening of A–B exchange interaction. Saturation magnetization (Ms) and magnetic moment are observed to increase up to x=0.4, and thereafter decrease due to the spin canting in B-sites. The initial permeability is found to increase with the addition of Zn2+ ions but the resonance frequency shifts towards the lower frequency. |
| Keywords: | Mg− Zn ferrites Complex permeability Spin canting |
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