INVESTIGADORES
MUDARRA NAVARRO Azucena Marisol
artículos
Título:
Effect ofthermaltreatmentinvacuumonFe-dopedSnO2 powders
Autor/es:
A. M. MUDARRA NAVARRO, C. E. RODRÍGUEZ TORRES, A. F. CABRERA; V. BILOVOL
Revista:
PHYSICA B - CONDENSED MATTER
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2012 vol. 407 p. 3214 - 3217
ISSN:
0921-4526
Resumen:
A sample of 10 at% Fe-doped SnO2 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 responsible for the observed ferromagnetism.
