CHAIN EFFECT FOR THE INVERSE MASS-RATIO OF COLLIDING PARTICLES IN GRAZING ION-SURFACE INTERACTIONS

A computer simulation was used to study, in the binary collision appro ximation, the trajectories, energy and angular distributions of 5-15-k eV Kr+. Xe+ and Rn+ ions scattered from atomic chain ridges on Cu(100) and V(1 (1) over bar 0) surfaces in the (110) direction with a grazin g angle interval 5-25 degrees. It was observed that for the inverse ma ss ratio of collision partners, i.e. when the incident ion is heavier than target atom, the atomic chain effect manifests itself in a number of features associated with the existence of a limiting scattering an gle in a single collision. It has been shown that a specific feature o f the atomic row effect for the inverse mass ratio of colliding partic les results in the appearance of characteristic peaks in the angular a nd energy distributions useful for diagnostic purposes. (C) 1998 Elsev ier Science S.A.