X-ray Rietveld analysis of (1-x)A(2)Ti(2)O(7)-xFe(2)TiO(5) (A= Eu,Y) solidsolutions.

Authors
Chtoun, EH Hanebali, L Garnier, P
Citation
Eh. Chtoun et al., X-ray Rietveld analysis of (1-x)A(2)Ti(2)O(7)-xFe(2)TiO(5) (A= Eu,Y) solidsolutions., ANN CHIM-SC, 26(3), 2001, pp. 27-32
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
ANNALES DE CHIMIE-SCIENCE DES MATERIAUX
ISSN journal
01519107 → ACNP
Volume
26
Issue
3
Year of publication
2001
Pages
27 - 32
Database
ISI
SICI code
0151-9107(200105/06)26:3<27:XRAO((>2.0.ZU;2-H
Abstract
The study of the binary system Y2Ti2O7 - Fe2TiO5 and Eu2Ti2O7 - Fe2TiO5 sho ws new solid solutions which are non-stoichiometric and crystallize with th e pyrochlore structure. A Rietveld analysis of the (1-x)A(2)Ti(2)O(7) - xFe (2)TiO(5) structure for A = Y and Eu is reported. The structural refinement s were achieved in the space group Fd3m. Refinements show that the Fe3+ ion s substitute for the Y3+ or Eu3+ ions with creation of vacancies in the tit anium and anionic sublattices.