Figure 6

The (a) Fe 2p, (b) La 3d, (c) Eu 3d, and (d) O 1s core-level XPS spectra recorded from the (i) LaFeO₃, (ii) La_0.70Eu_0.30FeO₃, and (iii) La_0.70Eu_0.30Fe_0.95Cr_0.05O₃ nanoparticles. The solid lines represent the best fitting of the experimental data. The estimated error for the binding energy values is ± 0.01 eV.