The effects of Sc and Nb substitution in Sr2FeReO6 double perovskites. A combined study of X-ray powder diffraction and Mossbauer spectroscopy

Authors
Blanco, JJ Hernandez, T Rodriguez-Martinez, LM Insausti, M Barandiaran, JM Greneche, JM Rojo, T
Citation
Jj. Blanco et al., The effects of Sc and Nb substitution in Sr2FeReO6 double perovskites. A combined study of X-ray powder diffraction and Mossbauer spectroscopy, J MAT CHEM, 11(2), 2001, pp. 253-256
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS CHEMISTRY
ISSN journal
09599428 → ACNP
Volume
11
Issue
2
Year of publication
2001
Pages
253 - 256
Database
ISI
SICI code
0959-9428(2001)11:2<253:TEOSAN>2.0.ZU;2-5
Abstract
The structure, magnetic properties and Mossbauer effect on Sr2Fe1- xMxRe1 y M'O-y(6) (x = 0, 0.1; y = 0, 0.1; M = Sc; M' = Nb) phases with partially or dered double perovskite structures are presented. The Nb and Sc substitutio ns affect the magnetisation values but the T-c values remain unaltered arou nd 400K. Mossbauer analysis shows high spin Fe3+ ions, except for Sr2FeReO6 , which shows a mixed valence state at high temperatures.