Open AccessThe effect of the Doping with Cobalt Transition Metal on the Dielectric and Structural Properties of Fe0.5CoxMg0.95-xO Nanoparticles Synthesized by Sol-Gel Assisted Auto-Combustion
Author(s) -
Tagreed M. AlSaadi,
Omar A. Ahmed,
Imad H. Khaleel,
Tariq A. Al-Dhahir
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1879/3/032117
Subject(s) - dielectric , cobalt , materials science , scanning electron microscope , lattice constant , analytical chemistry (journal) , doping , magnesium , transition metal , conductivity , diffraction , metal , powder diffraction , oxide , crystallography , chemistry , metallurgy , catalysis , optics , composite material , biochemistry , physics , optoelectronics , chromatography
The compound Fe 0.5 Co x Mg 0.95-x O where (x= 0.025, 0.05, 0.075, 0.1) was prepared via the sol-gel technique. The crystalline nature of magnesium oxide was studied by X-ray powder diffraction (XRD) analysis, and the size of the sample crystals, ranging between (16.91-19.62nm), increased, while the lattice constant within the band (0.5337-0.4738 nm) decreased with increasing the cobalt concentration. The morphology of the specimens was studied by scanning electron microscopy (SEM) which shows images forming spherical granules in addition to the presence of interconnected chips. The presence of the elements involved in the superposition was confirmed by energy-dispersive X-ray (EDX) analysis. The results showed that the dielectric constant decreases with increasing the cobalt concentration, while the dielectric loss factor and AC conductivity increase.