SYNTHESIS AND CHARACTERIZATION OF ZINC SUBSTITUTED MANGANESE FERRITE BY SOL -GEL AUTO- COMBUSTION METHOD

Abstract

All the compositions of Zn_1-xMn_xFe₂O₄ were prepared by sol-gel auto-combustion method.  In the present investigation an attempt has been made to establish a new chemical route which is both easy and versatile for the synthesis of fine mixed powders. The morphology and size of the particles was found out by scanning electron microscopy while the elemental compositions by elemental dispersive X-ray spectroscopy. Infra-red spectral studies shows an two strong bands, one around 600 cm⁻¹ which is attributed to the intrinsic vibrations of tetrahedral complexes and the other at 400 cm⁻¹ is due to octahedral one. The particle size was estimated by subjecting the samples to transmission electron microscopy (TEM) studies. Hysteresis loop parameters at room temperature were evaluated by using a vibrating sample magnetometer. The various compounds of the present system Zn1-xMnxFe₂O₄ were also investigated for their thermal and electronic studies.