Preparation and Structural Properties of ZnAlxFe2-xO4 Spinel Oxide
2016
The ZnAlxFe2-xO4 (x = 0.0, 0.2 and 0.4) spinel ferrites were prepared by the conventional solid state
reaction in air at 1350°C. The X-ray diffraction of all the three samples showed
sharp Bragg peaks indicating the formation of a single phase spinel structure. The
lattice parameters of the samples were determined from the X-ray diffraction data
using the Nelson-Riley extrapolation method. The lattice parameters, cation distribution
and oxygen position parameters have also been determined by refining the data by
the Rietveld method. Rietveld refinement of the XRD data reveals all the samples
to possess cubic symmetry corresponding to the space group Fd3m. Lattice parameters
were found to decrease with increasing Al concentration, i.e. 8.4322, 8.4002, and 8.3984 A for x = 0.0, 0.2 and 0.4, respectively.
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