Links oxygen hole doping to conductivity and structural properties in PrBaCo2O6−δ, suggesting implications for material performance.
Soft X-ray absorption spectroscopy at the O K -edge and Co L -edge was used to study PrBaCo2O6−δ. The O K -edge spectra show a hole-doping pre-edge peak preceding the O2p–Co3d doublet, whose relative spectral weight correlates with conductivity, lattice parameters, and Curie temperature. The results establish a spectroscopic link between oxygen hole states and transport in this layered cobaltite.
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Artur Braun (2026) studied this question.
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