Y3+ Doped Ni0.4 Mg0.4 Cd0.2 Fe2-yO4 Spinels Nanoferrite : Structural, Morphological, and Electrical Properties
Keywords:
Spinel Ferrite, Sol-Gel Autocombustion Method, Morphological Properties, Electrical PropertiesAbstract
Structural, morphological, and electrical properties were investigated for Y3+ doped Ni0.4 Mg0.4 Cd0.2 Fe2-y O4 spinel nanoferrite (where y = 0.025 to 0.125) obtained by sol-gel techniques. Nanoscale samples were carried out at low temperature and cost effective method with analytical grade metal nitrate. Citric acid was used as a fuel. The prepared powder were sintered at 400 oC and characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDAX) for structural property andscanning electron microscopy (SEM), transmission electron microscopy (TEM) for morphological studies. Ferrite formation was found to quite sensitive. The particle size was determined using Scherer’s formula and it found that it decreases with increase in Y3+content. Also DC resistivity increases with increasing Y3+content and electrical conductivity increases with temperature increases. These results may be applicable for promising area such as high frequency electrical devices.
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