IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Magnetic and structural 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
Lugar:
CNEA - Buenos Aires
Reunión:
Workshop; At the Frontiers of Condensed Matter IV; 2008
Institución organizadora:
Comisión Nacional de Energía Atómica - Departamento de Física, Facultad de Ciencias Exactas y Naturales - Universidad Nacional de San Martín
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 5 h milled 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.
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