Dielectric properties of calcium-substituted lanthanum ferrite

Physical and Magnetic Properties of Calcium-Substituted Li-Zn Ferrite

The effect of Ca-substitution on the physical and magnetic properties of Li0.3-0.5xZn0.4CaxFe2.3-0.5xO4 ferrites (x = 0.0, 0.01, 0.02, 0.03, and 0.05), prepared by the standard ceramic method, has been studied. It is found that the saturation magnetization increases up to x = 0.01 and then it decreases. On the other hand, the initial permeability decreased while the Curie temperature remained a...

Tunable Dielectric Properties of Ferrite-Dielectric Based Metamaterial

A ferrite-dielectric metamaterial composed of dielectric and ferrite cuboids has been investigated by experiments and simulations. By interacting with the electromagnetic wave, the Mie resonance can take place in the dielectric cuboids and the ferromagnetic precession will appear in the ferrite cuboids. The magnetic field distributions show the electric Mie resonance of the dielectric cuboids c...

Structural characteristics, electrical conduction and dielectric properties of gadolinium substituted cobalt ferrite

Gadolinium (Gd) substituted cobalt ferrites (CoFe2 xGdxO4, referred to CFGO) with variable Gd content (x = 0.0–0.4) have been synthesized by solid state reaction method. The crystal structure, surface morphology, chemistry, electrical conduction and dielectric properties of CFGO compounds have been evaluated. X-ray diffraction measurements indicate that CFGO crystallize in the inverse spinel ph...

Stability and Decomposition of Ca-Substituted Lanthanum Ferrite in Reducing Atmospheres

Lanthanum distribution and dielectric properties of intergrowth Bi5−xLaxTiNbWO15 ferroelectrics

Bi5−xLaxTiNbWO15 x=0–1.50 ceramics prepared by conventional solid-state reaction were studied using x-ray diffraction XRD , dielectric spectroscopy and Raman scattering techniques. The XRD analysis implied that single-phase intergrowth bismuth layered perovskite structure was obtained for all the samples and when x=0.75, the Bi3+ in Bi2O2 2+ layer begins to be substituted by La3+. The dielectri...