IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Influence of the Fe2+ ions concentration on the magnetic behavior of (Ti, Fe)O2 samples
Autor/es:
A.MUDARRA NAVARRO, V. BILOVOL, C. RODRIGUEZ TORRES, F.SANCHEZ AND F. CABRERA
Lugar:
Rio de Janeiro
Reunión:
Conferencia; 11th International Conference on Advanced Materials (ICAM2009); 2009
Resumen:
Abstract – In this work we present the structural and magnetic characterization of TiO2/FeO samples with 2.5, 5, 7.5 and 10 at% of Fe, prepared by mechano-synthesis. Mossbauer spectroscopy results show two paramagnetic interactions, one corresponding to Fe2+ and the other to Fe3+. X ray absorption spectroscopy (XAS) results showed that Fe ions are incorporated into the rutile phase but with oxygen coordination lower than that expected in this phase. AC- susceptibility measurements show a behavior mainly paramagnetic.
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