AN EXPERIMENTAL-STUDY OF THE ELECTRONIC-STRUCTURE OF C-60 FILMS GROWNAT THE AG(110) SURFACE

An extensive evaluation of the electronic structure of the Ag(110)/C60 interface is reported as a function of the overlayer coverage. Submon olayer coverages are characterized by a strong chemical adlayer-substr ate interaction which causes a significant re-distribution of the pi-s ymmetry occupied and pi- and sigma*-symmetry unfilled molecular state s local to the C sites. This is consistent with a two-dimensional arra y of C60 molecules. For coverages less-than-or-equal-to 1 ML, traces o f three-dimensional coalescence are found with an electronic structure very close to solid fullerene.