Surface deformations induced by CH$_3$S adsorption on Au(111) and Cu(111): a DFT study

M.C. Vargas, A. Selloni

Abstract


Surface deformations induced by methylthiolate adsorption on the (111) faces of Au and Cu are investigated by means of state of the art DFT slab calculations. We find that a significant surface rearrangement takes place when the molecules are adsorbed. Surface deformations are found to be larger for Au than for Cu and the magnitude of the deformations depends on both the coverage and the site of adsorption. Methanethiol adsorption on both Cu(111) and Au(111) \cite{ourjpc} is stronger for partial than for full coverage.

Keywords


Density functional calculations; total energy, cohesive energy calculations; chemisorption/physisorption; adsorbates on surfaces; organic self-assembled monolayers

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Revista Mexicana de Física

ISSN: 2683-2224 (on line), 0035-001X (print)

Bimonthly publication of Sociedad Mexicana de Física, A.C.
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