Effect of target surface on the elastic properties of fast fullerenes

[摘要] C(60)(+) fullerenes with keV energies are scattered at grazing angles of incidence from atomically clean and flat LiF(001), KCl(001), Al(001), Be(0001), Ni(110) surfaces as well as p(2x1) and p(3x1) oxygen superstructures on Ni(110). The elastic properties of C(60) are derived from a comparison of experimental data with 3D molecular dynamics simulations for different interaction potentials. In terms of a simple model for the hybridization of C(60) with the surface, we find evidence for a close relation between electronic structure of the surface and elasticity of C(60).

[关键词] METAL-SURFACES;C-60(+) IONS;INCIDENCE SCATTERING;GRAZING SCATTERING;AL(001) SURFACE;NEUTRAL C-60;CARBON;FRAGMENTATION;COLLISIONS;NANOTUBES