Solution combustion synthesis, characterization, magnetic, and dielectric properties of CoFe₂O₄ and Co_0.5M_0.5Fe₂O₄ (M = Mn, Ni, and Zn)

Abstract

Nanocrystalline CoFe2O4 and Co0.5M0.5Fe2O4 (M = Mn, Ni, and Zn) ferrites were prepared by solution combustion method using oxalyl dihydrazide as a fuel. These materials were characterized by several physicochemical...

Study of magnetic and optical transitions in MFe2O4 (M=Co, Zn, Fe, Mn) with spinel structure

“…It is also observed that wavenumber corresponding to tetrahedral vibrations increases in the order FNP<ZNP<MNP<CNP respectively. The same trend has been observed in various reports [53]. This phenomenon particularly depends on the cation distribution, cation mass, and the ionic radii of the divalent cations.…”

Structural, magnetic, and dielectric properties of solution combustion synthesized LaFeO3, LaFe0.9Mn0.1O3, and LaMnO3 perovskites

“…47 In general, the vibrational frequency of a bond is related to its force constant and the mass of the system. Classically, employing Hooke's law vibrational frequency ( n) in the wavenumber (cm À1 ) of a bond is expressed as: 30,44…”

“…The choice of fuel is very important to determine the exothermicity of the redox reaction between the metal nitrate and fuel. 30 Within this context, it should be mentioned that based on the exothermicity of the reaction, the combustion is of different types such as flaming and smoldering. Flaming combustion begins with a high flame temperature, and an entire mass burns instantly leading to a fluffy mass and particles experience little sintering in the flame resulting in larger aggregated particles.…”

Structural, Magnetic, and Optical Studies of Ni–Mg Ferrites Synthesized by Polyol Method

“…[ 3,4 ] The stunning multifunctional properties of ferrites such as large electrical resistivity and permeability, low eddy current, small dielectric loss, high saturation magnetization, etc., further extend its applications in magnetic data storage devices, transformer cores, antenna rods, etc. [ 5 ]…”

“…It can be used as a good candidate for data storage, magnetic storage, etc. [ 11 ] There are various reports in the scientific literature on the synthesis of Ni–Mg ferrites such as coprecipitation, [ 6,9 ] solid‐state reaction, [ 7 ] sol–gel method, [ 9 ] solution combustion, [ 5 ] citrate method, [ 12,13 ] etc. A simple and economically feasible synthesis technique which yields high‐quality nanoparticles opens further applications and development of ferrites.…”