HOMOEPITAXY OF SMALL AGGREGATES ON NI(111) AND PT(111) - AN EXTENDED HUCKEL STUDY

Authors
CASTELLANI NJ LEGARE P
Citation
Nj. Castellani et P. Legare, HOMOEPITAXY OF SMALL AGGREGATES ON NI(111) AND PT(111) - AN EXTENDED HUCKEL STUDY, Surface science, 320(1-2), 1994, pp. 39-54
Citations number
57
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
320
Issue
1-2
Year of publication
1994
Pages
39 - 54
Database
ISI
SICI code
0039-6028(1994)320:1-2<39:HOSAON>2.0.ZU;2-6
Abstract
A semiempirical molecular orbital study for small aggregates of Ni on Ni(111) and Pt on Pt(111) has been performed within the cluster approx imation. Different adsorption sites for monatomic adsorption, and diff erent geometrical configurations for aggregates up to four atoms, have been considered. Results suggest a very competitive morphological str ucture in the very early stages of homoepitaxial growth of these syste ms. The influence of factors as cluster size or cluster border have be en analysed.