Structural, Electrical and Infrared Studies of Ni0.7Cd0.3SmxFe2-xO4 Ferrite

Authors : M Z SAID, D M HEMEDA, S Abdel KADER and G Z FARAG

Pages : 41-50

Doi:10.3906/sag-1201-26

View : 16 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A series of samples of the system Ni0.7Cd0.3SmxFe2-xO4 insert ignore into journalissuearticles values(x = 0, 0.01, 0.02, 0.03, 0.04, 0.05 and 0.06); were prepared by the usual ceramic technique. X-ray diffraction, infrared spectroscopy insert ignore into journalissuearticles values(IR); and electrical properties were studied. The X-ray diffraction pattern confirms the presence of spinel phase structure for the sample without Sm content. For the samples with Sm ions, some diffraction peaks appeared which belongs to the orthorhombic phase structure. The main two absorption bands in IR spectra were observed around 600 cm-1 insert ignore into journalissuearticles values(u1);, which was attributed to stretching vibration of tetrahedral groups Fe3+-O2-, and that around 400~cm-1 insert ignore into journalissuearticles values(u 2); was attributed to the octahedral group complex Fe3+-O2-. The DC conductivity was found to increase with increasing temperature and Sm addition, which improved the electrical conduction of the given ferrite.
Keywords : Orthoferrites, Spectral studies, DC conductivity, Electrical mobility