Structural, electrical and magnetic parameters evaluation of nanocrystalline rare earth Nd3+-substituted nickel-zinc spinel ferrite particles

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

“…This increase is due to the change in ionic radius from Fe 3+ (0.67 Å) to larger ionic radius of Nd 3+ (0.99 Å). 20 Furthermore, although Nd 3+ ions have a larger ionic radius in comparison to that of Fe 3+ ions, a very thin insulating ultra-thin layer may be formed around the grains due to ions that have spread over the grain boundary. This phenomenon can cause the contraction of the spinel lattice.…”

“…This increase is due to the change in ionic radius from Fe 3+ (0.67Å) to larger ionic radius of Nd 3+ (0.99Å). 20 Fig. 1 Rietveld analysis of X-ray powder diffraction pattern of Ni-Zn ferrites.…”

“…The change in X-ray density and bulk density leads to an increase in porosity aer adding the neodymium which is possibly originated from the vacancies created from the change of ionic radii. 20 The average crystallite size of our samples was calculated from the full width at the half maximum (FWHM) of the most intense peak by using the Debye-Scherrer equation: 30…”

A review on MnZn ferrites: Synthesis, characterization and applications

“…Furthermore, advantages of soft ferrites include high resistivity, low cost, time and temperature stability, low loss and high permeability [43][44][45][46]. Most common soft ferrites are MnZn ferrites [47][48][49][50][51][52][53][54][55] and NiZn ferrites [56][57][58][59][60][61][62][63][64][65][66][67][68][69][70][71][72][73]. MnZn ferrites are more preferred as they have high permeability [74] and saturation magnetization [75]as compared to NiZn ferrites.…”

Structure and cationic distribution dependent soft magnetic properties of single-domain Mg1−Ni Fe2O4 (0 ≤ x ≤ 1.0) nanocrystals

“…Furthermore, substitutions among the M divalent cations (Mg 2+ , Mn 2+ , Co 2+ , Ni 2+ , Cu 2+ and Zn 2+ ) or by a trivalent cation (Cr 3+ , Mn 3+ , Al 3+ , Ga 3+ etc.) can easily modify the magnetic, optical, (di)electrical and catalytic properties of nanostructured ferrites [18][19][20][21][22][23][24]. The origin beyond these enhancements has been explained based on an antistructure model as the cations re-distribution and subsequently emergent active donor or acceptor centers on the large surface of nanosized SMFs [25,26].…”