Structural peculiarities of BiLa2O4.5+delta examined by x-ray and neutron powder diffraction

Authors
Wolcyrz, M Horyn, R Bouree, F
Citation
M. Wolcyrz et al., Structural peculiarities of BiLa2O4.5+delta examined by x-ray and neutron powder diffraction, J PHYS-COND, 11(30), 1999, pp. 5757-5765
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN journal
09538984 → ACNP
Volume
11
Issue
30
Year of publication
1999
Pages
5757 - 5765
Database
ISI
SICI code
0953-8984(19990802)11:30<5757:SPOBEB>2.0.ZU;2-G
Abstract
The results of crystal structure refinement applied to three polymorphic st ructure forms of BiLa2O4.5+delta and performed via x-ray and neutron diffra ction on powder samples are presented. The application and the comparison o f the results obtained by these methods allowed us to reveal certain struct ural peculiarities, i.e. the appearance of long-range ordering and the vari ety of superstructures formed. The origin of these phenomena lies in the sp ecific ordering of oxygen atoms.