Rietveld Structure Refinement and Cation Distribution of Cr3+ Substituted Nanocrystalline Ni-Zn Ferrites

الملخص EN

Ferrite nanoparticles of Ni0.7Zn0.3CrxFe2−xO4 were prepared by a sol-gel autocombustion method.

The prepared samples were shown to have a cubic spinel structure by applying the full pattern fitting of the Rietveld method.

The unit cell dimension, discrepancy factor, and interatomic distance have been determined.

As the Cr3+ content x increases, the unit cell dimensions and crystallite size are decreased.

The IR spectra show two absorption bands in the wave number range of 400 to 600 cm−1.