Differences are only visible on a magnified scale (cyan bars in Fig. ). Interestingly, these differences closely follow the trend obtained for the Ag-terminated surfaces. There is very little difference between the surface energies of the Pt-terminated surfaces in the Ag2L and Ag3L systems and that of Pt(111), indicating that electronic modifications of the frozen Pt surface layers induced by the underlying Ag bilayer and trilayer films are very small. This fits nicely to our earlier conclusion that the interface between Pt and the Ag layers is bulk-like for the Ag2L and Ag3L systems, leading to Ag(111)like surface energies of the Ag-terminated surfaces. In contrast, there is a bigger difference between the surface energy of the Pt-terminated surface and that of Pt(111) for the Ag1L system. This closely resembles our observations for the Ag-terminated surface, and also, in this case, the effect cannot be explained by short-range interactions following the constant bond order principle. The resulting electronic modifications due to the Pt-Ag interface are obviously of long-range nature, since they are felt at the Pt surface layer even over three Pt layers in between. For the mixed layer Pt@Ag1L systems (Ag3Pt surface layer instead of a Ag layer on the Ag terminated side), the in surface energies are slightly smaller than in Ag1L film system, in agreement with expectations for a more Pt-like layer.