IFEG   20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
artículos
Título:
Chemical effects correlated to nitrogen content of iron nitride films observed in the Fe L-shell X-rays induced by 5-keV electrons
Autor/es:
R. HINRICHS; A. P. L. BERTOL; S. JACOBSEN; G. CASTELLANO; M. A. Z. VASCONCELLOS
Revista:
NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH B - BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 318 p. 15 - 18
ISSN:
0168-583X
Resumen:
Iron nitride thin films, produced by reactive magnetron sputtering, were characterized with grazing incidence X-ray diffraction, X-ray reflectometry, Rutherford backscattering spectrometry (RBS) and conversion electron Mössbauer spectroscopy. Their characteristic L-X-rays spectra, obtained with an electron microprobe analyzer equipped with a wavelength dispersive spectrometer, were compared to the spectrum of an iron standard. The spectra from the nitrides presented several chemical effects: change in the relative peak areas and shifts of the positions of the La_1,2 and the Lb_1 peaks (chemical shift). The change in relative peak areas, namely the ratio between the Lb_1 and the La_1,2 peaks, correlated well with the nitrogen content measured with RBS.