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High-resolution core-level spectroscopy study of the ultrathin aluminum oxide film on NiAl(110)

Martin, Natalia LU ; Knudsen, Jan LU ; Blomberg, Sara LU ; Gustafson, Johan LU ; Andersen, Jesper N LU ; Lundgren, Edvin LU ; Ingelsten, H. Harelind; Carlsson, P. -A.; Skoglundh, M. and Stierle, A., et al. (2011) In Physical Review B (Condensed Matter and Materials Physics) 83(12).
Abstract
We have studied the ultrathin aluminum oxide film on NiAl(110) by a combination of high-resolution core-level spectroscopy and density functional theory calculations. Energy-dependent core-level data from the O 1s and Al 2p levels allows for a distinction between oxygen and aluminum atoms residing at the surface or inside the aluminum oxide film. A comparison to calculated core-level binding energies from the recent model by Kresse et al. [Science 308, 1440 (2005)] reveals good agreement with experiment, and the complex spectroscopic signature of the thin Al oxide on NiAl(110) can be explained. Our assignment of a shifted component in the O 1s spectra to oxygen atoms at the surface with a particular Al and oxygen coordination may have... (More)
We have studied the ultrathin aluminum oxide film on NiAl(110) by a combination of high-resolution core-level spectroscopy and density functional theory calculations. Energy-dependent core-level data from the O 1s and Al 2p levels allows for a distinction between oxygen and aluminum atoms residing at the surface or inside the aluminum oxide film. A comparison to calculated core-level binding energies from the recent model by Kresse et al. [Science 308, 1440 (2005)] reveals good agreement with experiment, and the complex spectroscopic signature of the thin Al oxide on NiAl(110) can be explained. Our assignment of a shifted component in the O 1s spectra to oxygen atoms at the surface with a particular Al and oxygen coordination may have implications for the interpretation of photoelectron-diffraction experiments from similar ultrathin aluminum oxide films. (Less)
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publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
83
issue
12
publisher
American Physical Society
external identifiers
  • wos:000288646500010
  • scopus:79961041702
ISSN
1098-0121
DOI
10.1103/PhysRevB.83.125417
language
English
LU publication?
yes
id
1d2a7f58-aa5f-4088-bfea-c995a8bc7fd3 (old id 1925712)
date added to LUP
2011-05-11 08:36:41
date last changed
2017-07-23 04:00:37
@article{1d2a7f58-aa5f-4088-bfea-c995a8bc7fd3,
  abstract     = {We have studied the ultrathin aluminum oxide film on NiAl(110) by a combination of high-resolution core-level spectroscopy and density functional theory calculations. Energy-dependent core-level data from the O 1s and Al 2p levels allows for a distinction between oxygen and aluminum atoms residing at the surface or inside the aluminum oxide film. A comparison to calculated core-level binding energies from the recent model by Kresse et al. [Science 308, 1440 (2005)] reveals good agreement with experiment, and the complex spectroscopic signature of the thin Al oxide on NiAl(110) can be explained. Our assignment of a shifted component in the O 1s spectra to oxygen atoms at the surface with a particular Al and oxygen coordination may have implications for the interpretation of photoelectron-diffraction experiments from similar ultrathin aluminum oxide films.},
  articleno    = {125417},
  author       = {Martin, Natalia and Knudsen, Jan and Blomberg, Sara and Gustafson, Johan and Andersen, Jesper N and Lundgren, Edvin and Ingelsten, H. Harelind and Carlsson, P. -A. and Skoglundh, M. and Stierle, A. and Kresse, G.},
  issn         = {1098-0121},
  language     = {eng},
  number       = {12},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {High-resolution core-level spectroscopy study of the ultrathin aluminum oxide film on NiAl(110)},
  url          = {http://dx.doi.org/10.1103/PhysRevB.83.125417},
  volume       = {83},
  year         = {2011},
}