INVESTIGADORES
MUDARRA NAVARRO Azucena Marisol
artículos
Título:
Magnetic and structure study of Fe doped tin dioxide
Autor/es:
V. BILOVOL, A. M. MUDARRA NAVARRO, C.E. RODRÍGUEZ TORRES, F. H. SÁNCHEZ AND A. F. CABRERA
Revista:
PHYSICA B - CONDENSED MATTER
Editorial:
ELSEVIER SCIENCE
Referencias:
Lugar: Amsterdam; Año: 2009 vol. 404 p. 2834 - 2837
ISSN:
0921-4526
Resumen:
The structural and magnetic properties of Fe 10 at. % doped SnO2 powders milled different times have been investigated. XAS results show a good dilution of Fe atoms in the rutile structure after 5 h of milling. Fe atoms have almost one oxygen vacancy near neighbour. At RT the sample presents the superposition of paramagnetic and ferromagnetic behaviours. When temperature decreases a progressive blocking process was observed. Below 100 K a shift of hysteresis loops is evident indicating magnetic coupling between ferromagnetic/antiferromagnetic phases.
