Mn-Zn-Fe Ferrite Having Rectangular Hysteresis Loop

Electromagnetic Properties of Mn-Zn Ferrite

Mn-Zn ferrite cera~nics ~vere prepared tluoogh usual ceramic method osing d~tlkre~tt irou oxide ran malerials 'l'lic: micro-structure paran~eters. s11ch as the sinterm: density and the femite grain si/e. depended on hot11 tlic sintrrinf Iclnpcratirrc and the kinds of iron oxide raw materials. The differences in the niicrostrocture parametrr.: crc responsihlc I\)r v;~rialions ill nlagnetization,...

An Analysis of Mn-Zn Ferrite Microstructure by Impedance Spectroscopy, STEM and EDS Characterisations

AC resistivity measurement results on Mn-Zn sintered ferrite were analyzed in the 0.1-500 MHz range. From electrical point of view, the material could be represented by an equivalent circuit of parallel resistance-capacitance cells connected in series corresponding to the contributions from bulk grains in one hand, and grain boundary layers in the other hand. The experimental resistivity curves...

Heat treatment effects on microstructure and magnetic properties of Mn–Zn ferrite powders

Mn–Zn ferrite powders (Mn0.5Zn0.5Fe2O4) were prepared by the nitrate–citrate auto-combustion method and subsequently annealed in air or argon. The effects of heat treatment temperature on crystalline phases formation, microstructure and magnetic properties of Mn–Zn ferrite were investigated by X-ray diffraction, thermogravimetric and differential thermal analysis, scanning electron microscopy a...

Large magnetic circular dichroism in resonant inelastic x-ray scattering at the Mn L-edge of Mn-Zn ferrite

Electric and Magnetic Properties of Ta-Doped Polycrystalline Mn-Zn Ferrite

Theeffect ofTa205additiveon the electric and magnetic properties of MnZn ferrites with fine grain size was studied Aadding small amounts ofTa205 to the MnZn ferriteincreased electric resistivity, while an excessive addition of Ta205causeddecreasein resistivity without significant grain growth. In asmall amount ofTa205 the change in the electric resistivity can be explained by ~ a ' ' substituti...