Mossbauer investigation on Ni-Zn nanoferrite with the highest saturation magnetization

The highest value of saturation magnetization (80 emu/g) ever reported has been achieved in Ni0.65Zn0.35Fe2O4 at lower sintering temperatures through sol-gel synthesis. The observed highest value of saturation magnetization has been explained on the basis of core-surface magnetic interactions facilitated through low temperature and in-field Mossbauer investigation of the system. Cation distribution for this composition has also been proposed and verified quantitatively by calculating the intensity of each peak of x-ray diffraction and estimating the lattice constant. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3098249]