[PDF] Top 20 Effect of Aluminium Doping on Structural and Magnetic Properties of Ni Zn Ferrite Nanoparticles

... substituted Ni-Co ferrites have high electrical resistivity, low eddy current losses, square nature of hysteresis loops, high stability and high value of saturation magnetization, hence they have enormous ... See full document

... The mechanism responsible for the observed ferro- magnetism at room temperature in transition metal- doped ZnO is also not clear and has been debated over the years. Several explanations are discussed below. Nevertheless ... See full document

... Spinel Ni-Cu-Zn ferrites are one of the potential materials used in high fre- quency applications and in magnetic storage devices ...their structural, electrical and mag- netic ... See full document

... the ferrite prepared in the present study have multi-domain (Kwon, 2017; Cullity et ...of ferrite. In these system the magnetic order is mainly due to an indirect exchange interaction mechanism ... See full document

... their structural, magnetic and hyperfine properties as a function of magnesium ...and structural refinement was done by Rietveld ...the nanoparticles and shift of band center with ... See full document

... Oxide nanoparticles. From this we can deliberate that doping of nickel in the increased concentration into Zinc Oxide the intensity of diffracted peak is accessible ... See full document

... In the present work, the influence of concentration of complexant/ fuel agents is seen on defect concentration and saturation magnetization of NFO powder. It is very important to select appropriate amount of DL-Alanine ... See full document

... shows the variation of dielectric constant έ with frequency for composition x=0.6 for as prepared and samples sintered at 400 o C. The dielectric constant έ decreases with increase in frequency showing the dispersion in ... See full document

... synthesized by sol-gel auto combustion method. X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) techniques were used for the characterization of the prepared samples. The structural ... See full document

... phase. Doping with Zn showed a considerable effect on structural, spec- tral, and magnetic ...increasing Zn content. This can be associated with ionic radii (Zn is larger ... See full document

... 1969). Magnetic properties of ferrites depend on the grain size, cation substitution, A-B exchange interaction and magnetocrystalline ...of nanoparticles that decreases the Ms ...non magnetic ... See full document

... important properties of Nickel ferrite. These properties are sensitive to various parameters like method of preparation, preparative parameters and conditions, nature of dopant and cation ... See full document

... The magnetic properties of Ni–Zn ferrites are strongly dependent on their chemical composition [8], porosity, grain size, ...important properties of spinel ferrites are conductivity and ... See full document

... [5], Ni-Zn-Al [6], Mn-Zn-Cd [7], Mn-Ni-Zn [8], Mn-Ni- Zn [9], Ni-Cu-Zn [10], Ni-Mg-Zn [11] have been synthesized with various processing ... See full document

... relatively low temperature. It is unique combustion and the chemical gelation process. For this x =0.2, x =0.4 and x =0.6. The prepared powders were sintered at 700 0 c for two hours. They are obtained as dried gel after ... See full document

... Fig. 1 shows SEM images for the samples at T = 1100° C. The images indicate that the particle size and morphology does not seem to be influenced by the substitution, and show hexagonal platelets with diameters ranging ... See full document

... of ferrite materials which enhances novel research on developing multifunctional ferrite ...The Ni-Mg ferrite materials show spontaneous magnetization at below transition temperature which ... See full document

... high magnetic permeability, high resistivity, and low losses, making itself a promising material for high- frequency ...on structural and magnetic properties of ferrites have been devoted ... See full document

... The dielectric constant decreases with increase in fre- quency showing dielectric dispersion as depicted in Fig- ure 6. The decrease in ε with frequency is natural be- cause of the fact that any species contributing to ... See full document

... complex magnetic permeability of a Ni-Zn ferrite for application to temperature ...sensors. Ferrite samples were fabricated by means of the conventional ceramic ...complex ... See full document