Volume : IV, Issue : I, January - 2014

Preparation, Characterization and Magnetic Property Study of Gd3+ Substituted Mg–Zn Ferrites

S. A. Masti

Abstract :

Ferrites of Zn_xMg_1-xFe_2-yGd_yO₄ (x=0, 0.2, 0.4, 0.8 and 1.0; y=0, 0.05 and 0.1) were prepared by usual solid state standard ceramic method. Characterizations were made by X-ray diffraction method and FTIR spectroscopy. Magnetic properties like temperature dependence normalized AC susceptibility and Curie temperature were studied. This study reveals that MgFe₂O₄ exibits multi domain structure with high Curie temperature On substitution of Zn²⁺ , it is found that Multi Domain (MD) structure changes to Single Domain (SD). Curie temperature also found to decrease due to decrease in A-B intraction. On substitution of Gd³⁺ in Mg-Zn ferrite system peak obtained in MgFe₂O₄ is supressed which is attributed to decrease in grain size and further decrease in Curie temperature is attributed to the decrease in B-B interaction.This is because Fe-Fe interaction is greater than Gd-Fe interaction at B-site

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

S. A. Masti Preparation, Characterization and Magnetic Property Study of Gd3+ Substituted Mg-Zn Ferrites Indian Journal of Applied Research, Vol.IV, Issue. I

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