Has charge ordering actually been observed in manganites by resonant X-ray scattering?

J Synchrotron Radiat. 2001 Mar 1;8(Pt 2):895-7. doi: 10.1107/s0909049501000322.

Abstract

The comparison between X-ray resonant scattering experiments and X-ray absorption data shows that no real Mn3+/Mn4+ charge ordering occurs in manganites with Mn3+/Mn4+=1 ratio. However, these experiments demonstrate the presence of two different types of manganese atoms with a different local geometrical structure. A structural model, which accounts for both X-ray absorption and resonant scattering experiments, is proposed.