STRUCTURE DETERMINATION OF GRAPHITIC CARBON ON Cu(1 1 0) BY MEANS OF SURFACE EXTENDED ENERGY LOSS FINE STRUCTURE.

Article abstract of DOI:10.1016/0038-1098(87)90852-0

Extended energy loss fine structures (EELFS) have been detected in the reflection mode above the K edge of graphitic carbon chemisorbed on a copper (1 1 0) single crystal. To explain the features of the radial distribution function of the EELFS signal, a model is proposed for the geometrical structure of graphitic C on Cu(1 1 0) which reproduces well the experimental data. According to the model the graphitic carbon overlayer is positioned 1. 275 A above the Cu(1 1 0) surface and the bond length between carbon atoms in the basal plane of the hexagonal lattice turns out to be 1. 47 A.