Synthesis, microstructural and magnetic properties of Cu doped Mg0.5Zn0.5Fe2O4 ferrites

Abstract

Cu doped Mg_0.5-xCu_xZn_0.5Fe₂O₄  (x = 0.0, 0.05, 0.1, 0.15, 0.2 and 0.25) ferrites are magnetic and highly resistive materials. They were synthesized by the method of solid-state reaction and characterized by x-ray diffraction (XRD), field effect scanning electron microscopy (FESEM),  Fourier transform infrared (FTIR), and vibrating sample magnetometer (VSM) for their structural, compositional, morphological, functional properties. They are with spinel structure under Fd-3m space group. Their particle size was 251 nm to 414 nm range after calcined at1000 ^oC. Their spinel structure was confirmed with FT-IR analysis, whose absorption bands were 650-530 cm^-1 and 446-400 cm^-1 range for higher and lower frequency, respectively. The value of coercivity is in the range 146.33- 9.427 Oe with the variation of content. This decrease in grain size indicates the material of soft ferrimagnetic nature.

Keywords: Cu doped Mn-Zn ferrite, XRD, FT-IR, Magnetic Saturation.