A MODEL FOR ESTIMATING THE SURFACE EFFECTIVE-MASS DURING COLLISION-INDUCED PROCESSES ON PT(111)

Authors
VELIC D LEVIS RJ
Citation
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
Citations number
21
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
269
Issue
1-2
Year of publication
1997
Pages
59 - 64
Database
ISI
SICI code
0009-2614(1997)269:1-2<59:AMFETS>2.0.ZU;2-A
Abstract
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} .