TDS Study of Potassium Adsorption on Al(111) and fivefold Al-Pd-Mn
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2000-01-01
Authors
Anderegg, James
Ross, Amy
Lograsso, Thomas
Diehl, Renee
Thiel, Patricia
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Ames National Laboratory
Abstract
We have used thermal desorption spectroscopy to carry out a comparative study of potassium adsorption on Al(111) and on the fivefold Al-Pd-Mn surface. Potassium adsorption on the quasicrystal was found to be different than on Al(111). The potassium monolayer desorbed from fivefold Al-Pd-Mn at lower temperatures than from Al(111). Potassium is known to form a dense monolayer on Al(111), with an ideal coverage of 0.33, but for the monolayer on fivefold Al Pd Mn we find that the saturation coverage is only one twelfth.
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This article is from MRS Proceedings 643 (2000): K11.4.1, doi:10.1557/PROC-643-K11.4.
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Mon Jan 01 00:00:00 UTC 2001