Abstract
A series of Mg-Cr nanoferrites with the chemical formula MgCrxFe2−xO4 () were synthesized by Citrate-Gel auto combustion method. The formation of single phase cubic spinel structure of the samples was confirmed by X-ray diffraction (XRD) analysis. It is observed that with the increase in the paramagnetic Cr content, the particle size of the ferrite compositions has decreased from 23 nm to 7 nm. Faraday magnetic Susceptibility Balance was used to measure the Magnetic susceptibility of synthesized samples that confirmed the paramagnetic nature of the ferrites. Vibrating Sample Magnetometer (VSM) was used to measure the Magnetic properties of nanoferrites under investigation at room temperature under the applied magnetic field of 15 kOe. With the increase in Cr3
Highlights
Spinel ferrites have gained much importance in recent years
A number of physical and chemical techniques have been developed in recent years to prepare nanosized magnetic materials
In the present investigation, a maiden attempt has been made to investigate the effect of Cr3+ ions on the magnetic properties of Mg nanoferrites synthesized by Citrate-gel auto combustion method
Summary
Spinel ferrites have gained much importance in recent years. As magnetic materials, ferrites cannot be replaced by any other magnetic material because they are relatively inexpensive, stable and have a wide range of technological applications in magnetic recording, transformer cores, sensors and magnetic resonance imaging, and so forth [1,2,3]. For the past few decades, Magnesium ferrite has attracted the attention of researchers [16, 17] due to its great potential for a wide range of applications These include microwave devices that are based on unique properties of these materials such as higher values of saturation magnetization, curie temperature, electrical resistivity, low Dielectric losses, and moderate coercive field. Hashim et al have synthesized nanoparticles of Ni0.5Mg0.5Fe2−xCrxO4 (0 ≤ x ≤ 1.0) by Citrate-gel auto combustion method and studied their dielectric and magnetic properties [19] It is under stood and is a fact that Citrategel auto combustion method results in ferrites with narrow particle size. An attempt has been made to synthesize MgCrxFe2−xO4 spinel ferrite system by Citrate-gel auto combustion method to obtain nanocrystalline particles and to study the magnetic properties and the effect of calcination on the grain size of the particles. In the present investigation, a maiden attempt has been made to investigate the effect of Cr3+ ions on the magnetic properties of Mg nanoferrites synthesized by Citrate-gel auto combustion method
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