Room Temperature Ferromagnetic Ordering in Lanthanum Substituted Nano‐Cobalt Ferrite Available to Purchase

The effect of $Fe3+$ ions substitution by rare earth $La3+$ ions on magnetic properties of nanocrystalline cobalt ferrite is investigated in this paper. Co‐precipitation method was used to prepare ultrafine particles of $CoFe2−xLaxO4 (x = 0,0.10,0.15).$ The samples have cubic spinel structure. Structure has been investigated by XRD while magnetic properties have been studied using VSM and Mossbauer spectrometer. $La3+$ ions modulate significantly the magnetic properties of cobalt ferrites.