IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Effect of thermal treatment in vacuum on Fe- doped SnO2 powders
Autor/es:
BILOVOL V; A.MUDARRA NAVARRO, C. RODRIGUEZ TORRES, F. CABRERA
Revista:
PHYSICA B - CONDENSED MATTER
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2012 vol. 407 p. 3214 - 3217
ISSN:
0921-4526
Resumen:
A sample of 10 at. % Fe-doped SnOB2B powder was prepared by mechanical alloying and then thermally treated at 773K in vacuum. The fit of the diffraction patterns and X-ray absorption spectroscopy measurements revealed that the as milled sample was pure doped rutile. Fe dissolved into SnO2 was found in Fe2+/Fe3+ ionic valence with mainly paramagnetic behavior. After the thermal treatment all techniques indicate the formation of the ternary Sn0.36Fe2.64O4 spinel phase which is the responsible of the observed ferromagnetism.