Magnetic studies of Mn2+substituted Zn-ferrite nanoparticles: Role of secondary phases, bond angles and magnetocrystalline anisotropy

Detailed investigation of Mn-substituted Zn ferrites for microwave applications up to 6 GHz

“…The enhanced saturation magnetisation for x ≥ 0.3 and above has reported by earlier researchers as well. 14,35 The magnetic moment was also calculated using the following equation 33 which follows the same behaviour as magnetisation does because both follow similar behaviour; However, the coercivity (Hc) increased considerably with the higher concentration of Mn (Table 6). In spinel ferrites, reversal of domain wall moment and domain rotation by reversal of applied magnetic field direction results in magnetic coercive force.…”

“…Similar results have been found in related studies. 13,14 A sharp peak in the crystalline nature of single spinel Zn ferrite shows that as we increase the amount of substitution (Mn) from x = 0.0, 0.1, 0.2, to 0.3, the peaks are slightly shifted towards higher angles. The lattice length (a) and unit cell volume (V) were obtained by the following formulas, respectively 8 and are given in Table 1.…”

“…The enhanced saturation magnetisation for x ≥ 0.3 and above has reported by earlier researchers as well. 14,35 The magnetic moment was also calculated using the following equation 33 which follows the same behaviour as magnetisation does because both follow similar behaviour;…”

“…The particle size, saturation magnetisation increased while coercivity decreased with higher Mn-substitution. 14 Investigation of Ni-doped Zn ferrites using co-precipitation technique shows single ferrite phase. Elastic properties revealed the isotropic nature of the prepared materials.…”

Influence of Pulse Laser Energy on Structural and Magnetic Properties of CoFe2O4 and CoLa0.01Fe1.99O4 Thin Films

“…[1][2][3][4][5] Cobalt is an inverted spinel that is characterized by having a moderate saturation magnetism (Ms), strong anisotropy, and a large magnetic coercive field (H c ). [5][6][7][8][9][10][11][12] The cobalt ion occupies the octahedral site, which is one of the conditions for the formation of the inverse spinel. The rest of the iron binary and tri-ions are distributed in the tetrahedral and the octahedral sites, with the possibility of the presence of the cobalt ion in the tetrahedral site depending on the preparation conditions and method.…”