Trampoline motions in Xe-graphite (0001) surface scattering

We have investigated Xe scattering from the graphite(0001) surface at hyperthermal incident energies using a molecular beam-surface scattering technique and molecular dynamics simulations. For all incident conditions, the incident Xe atom conserves the momentum parallel to the surface and loses approximately 80% of the normal incident energy. The weak interlayer potential of graphite disperses the deformation over the wide range of a graphene sheet. The dynamic corrugation induced by the collision is smooth even at hyperthermal incident energy; the graphene sheet moves like a trampoline net and the Xe atom like a trampoliner. * Corresponding Authors. Fax: +81-561-63-6302 (K. Shobatake). E-mail addresses: [email protected] (K. Sawabe), [email protected] (K. Shobatake).