Magnetic transformation of Ni–Mg–Zn ferrite substituted by the Co2+ ions from soft magnetic to hard magnetic

The role of thermal treatment and formulation on modifying the structural nature and optimizing certain physical features of coprecipitated superparamagnetic Co–Mn–Cr spinel ferrite

“…The annealed nano ferrites have a relatively large number of clusters of nanograins. Two essential factors contribute to this: (i) the exchange interaction produced by the magnetic dipole moment of the magnetic lattice; (ii) the elevating annealing temperature of the synthesized nano-ferrite (900 °C), resulting in the interaction among nano-grains [ 42 ].…”

Influence of La3+ ions doping on morphology and magnetic properties of Mg–Co ferrites

“…It can be seen from the calculation results in Table 1 that the dislocation line density shows an increasing trend. This is because La 3+ ions occupied the void positions in the crystal lattice, thereby increasing the grid points in the crystal [32]. The increase in the dislocation line density indicates a decrease in the crystallinity of the sample.…”