ausblenden:
Schlagwörter:
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Zusammenfassung:
Using soft-x-ray absorption spectroscopy at the Co L-2,L-3 and O K
edges, we demonstrate that the Co3+ ions with the CoO5 pyramidal
coordination in the layered Sr2CoO3Cl compound are unambiguously in the
high spin state. Our result questions the reliability of the spin state
assignments made so far for the recently synthesized layered cobalt
perovskites and calls for a reexamination of the modeling for the
complex and fascinating properties of these new materials.
