Comment on a Phys. Rev. Lett. paper: the origin of the excited state in LaCoO3
Abstract
In contrary to a claim of the recent Phys. Rev. Lett. 96 (2006) 027201 paper we maintain that the first excited state in LaCoO3 is the high-spin (HS) state (a lowest quasi-triplet from the octahedral subterm 5T2g of the 5D term, Phys. Rev. B 67 (2003) 172401) in agreement with the Tanabe-Sugano diagram.
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