Abstract
The polaron-ordered structure of has been reinvestigated to verify the previously proposed models. We found satellite reflections on the and reciprocal planes. It has been shown that neither of the previously proposed models is completely consistent with the observed results. Based on theoretical consideration of interhole interactions in a perovskite-based structure, the experimental results are analyzed. A polaron ordered structure with unit cell size of has been proposed which is substantially consistent with the observed neutron-scattering pattern.
- Received 13 October 1999
DOI:https://doi.org/10.1103/PhysRevB.62.11600
©2000 American Physical Society