High-resolution core-level spectroscopy study of the ultrathin aluminum oxide film on NiAl(110)
Artikel i vetenskaplig tidskrift, 2011

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.

root-5)r27-degrees-o surface oxide

photoemission

oxidation

al2o3

electron-spectroscopy

particles

leed

x-ray-diffraction

metals

Författare

N. M. Martin

J. Knudsen

S. Blomberg

J. Gustafson

J. N. Andersen

E. Lundgren

Hanna Härelind

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Per-Anders Carlsson

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Magnus Skoglundh

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

A. Stierle

G. Kresse

Physical Review B - Condensed Matter and Materials Physics

1098-0121 (ISSN)

Vol. 83 12

Drivkrafter

Hållbar utveckling

Styrkeområden

Nanovetenskap och nanoteknik

Transport

Energi

Materialvetenskap

Ämneskategorier

Kemi

DOI

10.1103/PhysRevB.83.125417