MAGNETIC-PROPERTIES AND CATION DISTRIBUTION IN IRON-CONTAINING PYROCHLORES

Authors
FILOTI G ROSENBERG M KUNCSER V SELING B FRIES T SPIES A KEMMLERSACK S
Citation
G. Filoti et al., MAGNETIC-PROPERTIES AND CATION DISTRIBUTION IN IRON-CONTAINING PYROCHLORES, Journal of alloys and compounds, 268(1-2), 1998, pp. 16-21
Citations number
4
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
268
Issue
1-2
Year of publication
1998
Pages
16 - 21
Database
ISI
SICI code
0925-8388(1998)268:1-2<16:MACDII>2.0.ZU;2-2
Abstract
Iron-containing pyrochlores, having ions with various valencies on the B-sites, were investigated by magnetic measurements and Mossbauer spe ctroscopy. The influence of the ionic radius and of the valence state of the different cations accommodated on A or B sites on the super-exc hange interactions and local distortions was emphasized. Three local c onfigurations of iron were given as evidence in agreement with a model based on a random distribution of ions over the B-sites. (C) 1998 Els evier Science S.A.