Andere Kunden interessierten sich auch für
![Nanostructured Cr Doped CdO Thin Films For Optoelectronic Devices]( "Nanostructured Cr Doped CdO Thin Films For Optoelectronic Devices")
Nanostructured Cr Doped CdO Thin Films For Optoelectronic Devices27,99 €![Composite Materials For Microwave Applications]( "Composite Materials For Microwave Applications")
Composite Materials For Microwave Applications46,99 €![DC Electrical Properties of Mg Substituted NiCuZn ferrites]( "DC Electrical Properties of Mg Substituted NiCuZn ferrites")
DC Electrical Properties of Mg Substituted NiCuZn ferrites32,99 €![Study of Magnetic and Dielectric Properties of Mn-Zn-Ca Ferrites]( "Study of Magnetic and Dielectric Properties of Mn-Zn-Ca Ferrites")
Study of Magnetic and Dielectric Properties of Mn-Zn-Ca Ferrites36,99 €![Synthesis of Pure and Ni doped TiO2 NPs using Papaya leaf Extract]( "Synthesis of Pure and Ni doped TiO2 NPs using Papaya leaf Extract")
Synthesis of Pure and Ni doped TiO2 NPs using Papaya leaf Extract29,99 €![Study Of Photo Sensor Using Indium Doped Copper Selenide Thin Films]( "Study Of Photo Sensor Using Indium Doped Copper Selenide Thin Films")
Study Of Photo Sensor Using Indium Doped Copper Selenide Thin Films34,99 €![Studies on monovalent doped mixed valent microstructral manganites]( "Studies on monovalent doped mixed valent microstructral manganites")
Studies on monovalent doped mixed valent microstructral manganites26,99 €
The polycrystalline samples of MgCrxFe2-xO4 ferrites were prepared by the conventional solid state ceramic sintering technique in air. The x-ray diffraction patterns obtained showed sharp peaks indicating the formation of single phase cubic spinel structure. Magnetic measurements were performed in order to investigate different magnetic properties of the samples. The Curie temperature (Tc) for all the samples has been determined where the Hopkinson type of effect at Tc has been observed with the manifestation of a sharp fall in permeability. The electrical resistivity measurements have been carried out as a function of temperature. The activation energies were found to be decrease with increasing Cr content. The lower activation energies are associated with higher electrical conductivity. The AC resistivity and dielectric constant of the samples are found to decrease with increasing frequency, exhibiting normal ferromagnetic behavior. The observed variation of electrical and dielectric properties of MgCrxFe2-xO4 ferrites are explained on the basis of Fe2+/Fe3+ ionic concentration.