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МИНОБРНАУКИ РОССИИ
Федеральное государственное бюджетное учреждение науки
Институт проблем машиноведения Российской академии наук

Structural and magnetic properties of zinc doped nickel ferrite Ni(1−X)ZnXFe2O4 synthesized using s

Авторы:
Abhishek Nigam, Deepak Singh, Ankur Sinha, Deepak Sachan, Anisha, Ankur Vishal, Deepak Kumar, Naveen Kumar
Страницы:
493-500
ДОИ (doi):
Аннотация:

Zinc doped Nickel ferrites with chemical formula  (x = 0.2, 0.4, 0.6, and 0.8) were synthesized using both Sol-gel auto-combustion and Hydrothermal methods. The synthesized powders were characterized for their physical and magnetic properties. The crystal structure and lattice parameter of these compounds were investigated by X-ray diffraction (XRD) and morphology has been confirmed by Scanning Electron Microscopy (SEM). The magnetic properties of after-calcined nanoparticles were measured at room temperature using a vibrating sample magnetometer (VSM). X-ray diffraction of these samples shows the presence of a single-phase cubic spinel ferrite structure. The VSM analysis indicates that the Zn content has a significant influence on the magnetic properties such as Saturation Magnetization (Ms), Coercivity (Hc), and Remanence (Mr). The doping concentration of Zn increase with an increase of x which causes a significant increase in the Ms from x=0.2 to 0.4 then decrease from x=0.6 to 0.8. A critical Rietveld analysis of XRD reveals the presence of a very small amount of NiO phase along with the ferrite phase. The Rietveld analysis also confirms the crystallite size and lattice parameter.

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