Autor: |
Chatelet, J., Claassen, H. H., Gruen, D. M., Sheft, I., Wright, R. B. |
Zdroj: |
Applied Spectroscopy; March 1975, Vol. 29 Issue: 2 p185-189, 5p |
Abstrakt: |
Techniques have been developed for obtaining reproducible lattice phonon spectra of barrier aluminum oxide anodic films. Changes in the lattice phonon spectrum as a result of 15-keV proton bombardment are interpreted in terms of the formation of Al-OH bonds. Polarization spectra of stripped and unstripped aluminum oxide films confirm the findings of Vedder and Vermilyea, particularly with respect to the origin of the 960 cm−1band. The close similarity in the observed and calculated band shapes (using the theory of Berreman) leave little doubt that the 960 cm−1absorption is due to a longitudinal optic mode of the aluminum oxide lattice. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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