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Updated: Aug 6, 2026

The Effect of Anodization Parameters on the Aluminum Oxide Dielectric Layer of Thin-Film Transistors
Published on: May 24, 2020
Oxygen-deficient line defects in an ultrathin aluminum oxide film
M Schmid1, M Shishkin, G Kresse
1Institut für Allgemeine Physik, Technische Universität Wien, A 1040 Wien, Austria.
Abstract:
A model for the straight antiphase domain boundary of the ultrathin aluminum oxide film on the NiAl(110) substrate is derived from scanning tunneling microscopy measurements and density-functional theory calculations. Although the local bonding environment of the perfect film is maintained, the structure is oxygen deficient and possesses a favorable adsorption site. The domain boundary exhibits a downwards band bending and three characteristic unoccupied electronic states, in excellent agreement with scanning tunneling spectroscopy measurements.
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