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High temperature oxygen near edge x-ray absorption fine structure valence band spectra and conductivity of LaFe3/4Ni1/4O3 from 300 to 773 K
LaFe3/4Ni1/4O3 was subjected to oxygen near edge x-ray absorption fine structure (NEXAFS) spectroscopy for 300 K < T < 773 K. The spectra show in the pre-edge a small hole doped peak originating from Ni substitution. The relative spectral weight of this transition to the weight of the hybridized O(2p) …