Title of article :
The effect of different substitutions (Eu, Ce, Al, and Bi) on the structural and magnetic properties of Fe3O4
Author/Authors :
Esmaeili ، Shadi Faculty of Physics - Semnan University , Aghazadeh ، mustafa Materials and Nuclear Research School - Nuclear Science and Technology Research Institute (NSTRI) , karimzadeh ، Isa Department of Physics - Faculty of Science - Islamic Azad University, Central Tehran Branch , Shokrian ، Fatemeh Faculty of Physics - Semnan University
Abstract :
In this study, the effect of different substitutions (Eu, Ce, Al, and Bi) on the structural and magnetic properties of Fe3O4 is investigated. All samples were synthesized with the cathodic electrochemical deposition method. The structural properties and surface morphology are investigated by XRD and FESEM analyses. Structural analysis of the samples showed the formation of a single-phase structure with an Fd-3m space group. The results also showed that the lattice constant and the cell volume increase by increasing the substituted ion s radius. The results of surface morphology of the samples also showed that with increasing substituted ion radius, the average diameter of the samples increases. For BiFe2O4, EuFe2O4, CeFe2O4, and AlFe2O4 samples, the mean diameter was obtained at 50.038 (±13.60)nm, 47.95 (±9.62)nm, 36.06 (±8.29)nm, and 45.72 (±5.39)nm, respectively. And, the magnetic properties of the samples were investigated by VSM analysis. The study of the magnetic properties of the samples shows the superparamagnetic behavior for all samples. Also, the results show that substituting Fe ions with larger radii ions leads to a decrease in saturation magnetization (Ms) and residual magnetization (Mr).
Keywords :
Fe3O4 ferrite , Substitutions , Cathodic electrical deposition method , Magnetic properties
Journal title :
Progress in Physics of Applied Materials
Journal title :
Progress in Physics of Applied Materials
