DYNAMICAL INTERACTION EFFECTS ON THE COULOMB EXPLOSION OF H-2(-ANGLE INCIDENCE ON SOLID-SURFACES() AT GLANCING)

The dynamical interaction effects on the Coulomb explosion and the sto pping power are studied for MeV H-2(+) ions in grazing collisions with a solid surface. The surface dynamical potential induced by the molec ular ions is obtained by using a local frequency-dependent dielectric function for a semi-infinite electron gas with damping. A set of equat ions describing the motion of the center of mass and the Coulomb explo sion is obtained by including the repulsive force of the surface atoms , the bare Coulomb force, and the dynamical forces. The total energy l oss for the molecular ion is calculated, taking into account a contrib ution from both the collective excitations of the conduction electrons and the single-electron excitations of each of the substrate atoms. [ S1050-2947(98)03908-0].