The interpretation of experimentally derived helium-metal interaction potentials

Autor: A.M. Lahee, R.F. Willis, William Allison
Rok vydání: 1984
Předmět:
Zdroj: Surface Science Letters. 147:L630-L636
ISSN: 0167-2584
DOI: 10.1016/0167-2584(84)90842-9
Popis: We show that existing theories which relate the helium-metal potential to the metallic surface charge density do not lead to a unique prediction for the surface charge density profile for a given experimental potential. A simple calculation of the corrugation of the attractive van der Waals potential for Cu(110) and Ag(110) shows that this is a contributary factor and that its inclusion improves the agreement between theories and also between experimental and calculated values for the charge density corrugation amplitude.
Databáze: OpenAIRE