| AVS 55th International Symposium & Exhibition | |
| Surface Science | Tuesday Sessions |
| Session SS-TuP |
| Session: | Surface Science Poster Session |
| Presenter: | L. Huerta, Universidad Nacional Autónoma de México |
| Authors: | L. Huerta, Universidad Nacional Autónoma de México R. Escamilla, Universidad Nacional Autónoma de México M. Flores, Universidad de Guadalajara, México E. Morán, Universidad Complutense, España M. Alario-Franco, Universidad Complutense, España |
| Correspondent: | Click to Email |
Polycrystalline samples type SeCu1-xMnxO3 perovskites were studied by x-ray photoelectron spectroscopy (XPS). The XPS spectra revealed Se, Cu and Mn oxides on the surface of the samples, mainly SeO2, CuO and MnO. After with great periods of etching time the intensity of SeO2, CuO and MnO decreased. The Se 3d, Me 2p3/2 (Me = Cu, Mn), Me 3d and O 1s spectral lines associated to the chemical states SeMO3 were identified and they do not change with increased of etching time.