Journalartikel

Jahr der Veröffentlichung: 1992

Seiten: 1532-1535

Zeitschrift: Physical Review Letters

Bandnummer: 69

Heftnummer: 10

ISSN: 0031-9007

DOI Link: https://doi.org/10.1103/PhysRevLett.69.1532

Verlag: American Physical Society

Abstract: 

The adsorption of potassium on Al(111) at 90 K and at 300 K has been investigated by low-energy electron diffraction (LEED). Although a (√3 × √3 )R30° structure is formed at each temperature, a detailed LEED analysis has revealed that the adsorbate positions are quite different and unusual in each case. At 90 K the adatoms occupy on-top sites and at 300 K they occupy substitutional sites. An irreversible phase transformation from the former to the latter structure occurs on warming to 300 K. These results are discussed in the light of recent density-functional-theory calculations.

Harvard-Zitierstil: Stampfl, C., Scheffler, M., Over, H., Burchhardt, J., Nielsen, M., Adams, D., et al. (1992) Identification of stable and metastable adsorption sites of K adsorbed on Al(111)., Physical Review Letters, 69(10), pp. 1532-1535. https://doi.org/10.1103/PhysRevLett.69.1532

APA-Zitierstil: Stampfl, C., Scheffler, M., Over, H., Burchhardt, J., Nielsen, M., Adams, D., & Moritz, W. (1992). Identification of stable and metastable adsorption sites of K adsorbed on Al(111).. Physical Review Letters. 69(10), 1532-1535. https://doi.org/10.1103/PhysRevLett.69.1532