Published November 8, 1976 | Version v1
Journal article

Multiple oxidation states of Al observed by photoelectron spectroscopy of substrate core level shifts

  • 1. Xerox Palo Alto Research Center, Palo Alto, California 94304

Description

Substrate core chemical shifts upon chemisorption of oxygen on aluminum are observed using variable-excitation-energy photoelectron spectroscopy. At low exposures a unique intermediate oxidation state evolves where the Al 2p level is shifted by only 1.3 eV toward higher binding energy as compared to the 2.6-eV shift observed for heavily oxidized aluminum (Al2O3). Simultaneous observation of the O 2p resonance shows evidence for a sharp phase change at exposures close to monolayer formation

Additional details

Identifiers

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
37
Journal Issue
19
Series
Phys. Rev. Lett.
Journal Page Range
1282-1285
ISSN
0031-9007

Optional Information

Notes
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