X. Torrelles et al., In-plane X-ray diffraction study of the C-60/Au(110) p(6x5) reconstructed surface by direct methods, PHYS ST S-B, 215(1), 1999, pp. 773-777
Adsorption of C-60 on the highly anisotropic Au(110) 1 x 2 reconstructed su
rface leads to an ordered quasi hexagonal 6 x 5 superstructure. This interf
acial reconstruction has been investigated by grazing incidence X-ray diffr
action. Analysis of the in-plane data set reveals four C-60 molecules per (
6 x 5) unit cell with a separation between them close to 10 Angstrom and a
surface symmetry having a glide plane normal to [001]. The basic features c
haracterizing the surface morphology of this reconstruction have been disti
nguished applying the 'direct methods' sum function. The arrangement of C-6
0 in the surface unit cell as well as the substrate distortion's map have b
een obtained from the analysis of the data at different resolutions which a
gree with STM measurements.