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.
| Original language | English |
|---|---|
| Pages (from-to) | K1141-K1144 |
| Journal | Materials Research Society Symposium - Proceedings |
| Volume | 643 |
| State | Published - 2001 |
| Externally published | Yes |
Funding
B. I. Wehner acknowledges support from the Alexander von Humboldt foundation. This work was also supported by the U.S. Department of Energy under Contract No. W-405-Eng-82.