29 October 2014
The stability of the Pr valence and the role of the Pr−O bonds in the Pr-based cobaltite Pr0.50Sr0.50CoO3 across the unexpected magnetostructural transition were studied at low temperature. A complete X-ray absorption spectroscopy study as a function of temperature revealed the absence of charge transfer from Pr to Co sites and of spin-state transitions in the Co ions despite the strong Pr−O hybridization. Theoretical calculations support the experimental data.
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Oxides for new-generation electronics

Stability of the Cationic Oxidation States in Pr0.50Sr0.50CoO3 across the Magnetostructural Transition by X-ray Absorption Spectroscopy

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