NiCuZn Nano Ferrite Prepared by Sol Gel Method for Multilayer Chip Inductor Applications

Abstract

Ni_0.50Zn_0.45Cu_0.05Fe₂O₄ nanoparticles prepared through sol-gel process have been investigated by infrared spectra, X-ray diffraction analysis on the sintered samples. X-Ray diffraction patterns show single phase spinel structure. The far infrared spectra showed two absorption bands. The high frequency band ν₁ and low frequency band ν₂ are assigned to the tetrahedral and octahedral metal-oxygen complexes, respectively. The room temperature saturation magnetization (M_s) obtained from vibration sample magnetometer (VSM) shows M_s increases with increasing (M_s = 76.76 emu/g) sintering temperature up to 950 ºC. Initial permeability (μ_i) of the sintered samples increases with sintering temperature and for each sample μi is constant up to MHz frequency range showing high operating frequency of the material.