Research Article

Crystal Defects and Cation Redistribution Study on Nanocrystalline Cobalt-Ferri-Chromites by Positron Annihilation Spectroscopy

Figure 1

The EDAX spectrum of the Cr3+-substituted samples, at concentrations and 1.8.
272846.fig.001a
(a)
272846.fig.001b
(b)