Synthesis an d study m agnetic p roperties of NiFe۲ -xGaxO۴ (۰ x ۰.۳) ferrite nanoparticles

In the recent years, magnetic nanoparticles have been a subject of great in terest from both techno logical and fundamenta l points of view [۱]. S pinel ferrite is one of the most important classes of magnetic materials owing to the ir interesting applications. Particula rly, mixed spinel ferrite nanoparticles have gen erated a large research effort becau se their magnetic properties differ markedly from single ferrite. Sp inel ferrite s crystallize into a cu bic close packed struct ure of oxyg en ions. In the spinel structure, the magnetic ions are distributed among two differe nt lattice si es, tetrahedral (A) and octahedral ( B) sites. The magnetic properties of these ferrites such as transition te mperature and saturation magnetic moment are strongly d epend on the relative distribution of cations at t he different sites, type of doping ato m and as well as the preparation condition [۱] .Therefore, the magnet ic propertie s of these materials c an be tailored by using the doping of the different transition metal cations. In the present work, we have study the e ffect of G a doping on structural and magn etical properties of N iFe۲- xGax O۴ (...) ferrite n anoparticles. Structural and magnetic properties of NiFe۲- xGax O۴ (...) ferrites na noparticles have been studied by X -Ray diffraction (XRD ) and Vibrating sample magnetom eter (VSM). Nanoparticles of NiFe۲-xGaxO۴ ferrite were synthe sized using sol-gel met hod.

کلیدواژه ها:

Ferrite Nanoparti cles ، XRD ، Magnetization.