Hybridization of electronic states and magnetic properties of self-doped La1−xMnO3+δ (0 ≤  x ≤ 0.15) perovskites: XANES study

Electron structure of self-doped La1−xMnO3+δ perovskites is studied with X-ray absorption spectroscopy by measuring the spectra at manganese L-edges and oxygen K-edge, and analyzing the results for Mn K-edge spectra and magnetization data. The observed change of Curie temperature is explained by the change of level of hybridization of Mn 3d states and the O 2p states, which was manifested by the parallel change of 2p3/2 and 2p1/2 spectra with x and TC.