Crystal Defects and Cation Redistribution Study on Nanocrystalline Cobalt-Ferri-Chromites by Positron Annihilation Spectroscopy
Figure 7
The ratio curves generated from the coincidence Doppler broadening spectra of the different samples—(a) elements Co, Fe, and Cr besides CoCrxFe2−xO4 of and 2.0; (b) CoCrxFe2−xO4 of x = 0.0, 0.3, 0.7, 1.7, and 1.9. All the spectra had been peak normalized and then divided by that of a pure reference Si sample in order to generate the ratio curves.