A series of soft ferrites with the general formula MgCrxFe2−xO4, where x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5, have been fabricated using the powder metallurgy route. The comprehensive study of Cr-doped magnesium ferrite has been carried out employing different techniques. The structural, surface, elemental, magnetic and dielectric properties have been examined using x-ray diffractometry, Fourier infrared spectroscopy, scanning electron microscopy, a vibrating sample magnetometer and an inductor capacitor resistor meter, respectively. The formation of a single-phase cubic spinel structure is confirmed by x-ray diffractometry and Fourier transform infrared spectroscopy. It is revealed that the lattice constant decreases with increasing Cr content. The surface of these samples consists of nano-particles in the range of 90–175 nm, while energy dispersive x-ray spectroscopy has been subject to elemental analysis of all the samples. The saturation magnetization and remanence has a nonlinear trend with increasing Cr content, while the coercivity decreases monotonically. The dielectric properties also confirm the formation of spinel ferrites.
Mg ferrites spinel ferrites magnetic properties dielectric properties
This is a preview of subscription content, log in to check access.