Has charge ordering actually been observed in manganites by resonant X-ray scattering?
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.
García
J
J
Instituto de Cienca de Materiales de Aragón, C.S.I.C.- Universidad de Zaragoza, Spain. jgr@posta.unizar.es
Sánchez
M C
MC
Blasco
J
J
Subías
G
G
Proietti
M G
MG