Fig. 2: Element-specific electronic structure evolution upon reduction. | Nature Communications

Fig. 2: Element-specific electronic structure evolution upon reduction.

From: Selective reduction in epitaxial SrFe0.5Co0.5O2.5 and its reversibility

Fig. 2: Element-specific electronic structure evolution upon reduction.

X-ray absorption spectra (XAS) of (a) Fe L-edge and (b) Co L-edge for as-grown and reduced SrFe0.5Co0.5O2.5 (SFCO) films. c Estimated Fe and Co valence states from multiplet fitting. Lists relative proportions of Fe4+, Fe3+, Fe2+ and Co4+, Co2+ in as-grown and 5 h reduced films. d O K-edge XAS spectra for SFCO films before and after reduction, showing changes in hybridization. e O K-edge XAS spectra for SrFe1−xCoxO2.5 with different x values.

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