D. Velic et Rj. Levis, A MODEL FOR ESTIMATING THE SURFACE EFFECTIVE-MASS DURING COLLISION-INDUCED PROCESSES ON PT(111), Chemical physics letters, 269(1-2), 1997, pp. 59-64
The number of surface lattice atoms involved in a particle-surface col
lision is represented by an effective mass. A model for estimating the
effective mass of Pt{111} during the collision with an incident parti
cle is proposed. The effective mass is governed by the collision time
which is a function of the incident particle's velocity. The effective
mass is proposed to increase geometrically with collision time, based
on the hexagonal close-packed structure of the Pt lattice. The effect
ive mass model was tested using Ar and Xe scattering data from Pt{111}
.