| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1331270 | Journal of Solid State Chemistry | 2007 | 9 Pages |
Abstract
The reliability factors of a Rietveld X-ray powder refinement of PbCrO3 could be improved by considering the lead ion in a multi-minimum potential displaced from its special position. These studies coupled to EDX analysis show a certain lead deficiency. Electron diffraction and high-resolution electron microscopy reveal that the microstructure of this material is a rather complex perovskite superstructure that presents a compositional modulation, within a microdomain distribution. The proposed supercell is ∼ap×3ap×(≈14-18)ap∼ap×3ap×(≈14-18)ap.
Graphical abstractModel of the structure of PbCrO3 obtained by electron microscopy and diffraction.Figure optionsDownload full-size imageDownload as PowerPoint slide
Related Topics
Physical Sciences and Engineering
Chemistry
Inorganic Chemistry
Authors
Ángel M. Arévalo-López, Miguel Á. Alario-Franco,