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

Natalia Martin, Jan Knudsen, Sara Blomberg, Johan Gustafson, Jesper N Andersen, Edvin Lundgren, H. Harelind Ingelsten, P. -A. Carlsson, M. Skoglundh, A. Stierle, G. Kresse

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish
Article number125417
JournalPhysical Review B (Condensed Matter and Materials Physics)
Volume83
Issue number12
DOIs
Publication statusPublished - 2011

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

Fingerprint

Dive into the research topics of 'High-resolution core-level spectroscopy study of the ultrathin aluminum oxide film on NiAl(110)'. Together they form a unique fingerprint.

Cite this