INVESTIGADORES
MUDARRA NAVARRO Azucena Marisol
artículos
Título:
Mössbauer study of Sn(Fe)O2 prepared by mechanosynthesis
Autor/es:
V. BILOVOL, A.M. MUDARRA NAVARRO, A.F. CABRERA, C.E. RODRÍGUEZ TORRES AND F.H. SÁNCHEZ
Revista:
HYPERFINE INTERACTIONS
Editorial:
SPRINGER
Referencias:
Año: 2008 vol. 179 p. 45 - 50
ISSN:
0304-3843
Resumen:
Samples of Sn0.90Fe0.10O2 were prepared by mechanosynthesis method. The structure and magnetic behavior of the samples have been investigated by X-ray diffraction (XRD) and Mössbauer spectroscopy. It has been found that for short milling times a small percentage of the initial hematite remains simultaneously with the formation of metallic Fe. Additionally a paramagnetic contribution appears in the Mössbauer spectra. For milling times, over 2 h, the iron ions are in paramagnetic states having +3 and +2 oxidation states while by XRD only the rutile structure diffraction lines were observed.
