— The influence of the Zn and Cd ion contents upon the natural spin resonance in Ni-Zn and Ni-Cd ferrites has been investigated. Previous experiments by other authors have shown that substituting Zn ions for Ni ions leads to a change of the total effective anisotropy field and consequently of the natural spin resonance frequency fi. ft measurements have been carried out by using a coaxial line ...

Ferrites have gained a lot of attention because their diverse uses in domains including photocatalytic degradations, gas sensors, electronic devices, organic transformation catalysts, adsorption, and so on. This review focuses on cadmium ferrites numerous doped versions' production methodologies, characterization, applications. The structural, electric, magnetic, dielectric properties are prima...

A series of Cr substituted Mg-ferrites were synthesized by coprecipitation technique annealed at 900 o C for 6h. XRD analysis technique was used to confirm the formation of synthesized ferrites structure and the particle size estimated by Scherrer formula was found to be lying in the range 42.4 to 84.8 nm. All the prepared samples exhibited inverse cubic spinel structure and lattice parameter f...

Introduction: Patch antennas on ferrites substrates showed tunable radiation frequency, polarisation diversity, and beam steering [1]. In addition, it was recently demonstrated that patch antennas on a selfbiased ferrite-dielectric composite substrate showed a miniaturisation factor of > 5, a 600% enhanced bandwidth and a high efficiency at a resonance frequency of 277 MHz [2]. The introduction...

The influence of B203 on the microshucture and magnetic properties of pure Mn-Zn ferrites has been investigated. A citrate gel processing route was employed to produce highly homogeneous Mn-Zn (MQ,~,Z~.,F~,,OJ ferrites undoped or doped with B203 (0-2.5wt%). The results show that B203 doping does not benefit the magnetic properties of these femtes, but promoted grain growth significantly. The in...

The impact of cation distribution on electronic structure and magnetic properties is investigated by the first-principle calculation. The structure optimization is based on generalized gradient approximation GGA exchange-correlation and projector augmented wave method. The optimized structures of inverse and normal copper ferrite are tetragonal c /a=1.06 and cubic, respectively. The optimized s...