Open AccessKINETICS OF ORDERING AND 2-DIMENSIONAL GROWTH OF Ag ON Si(111)
Author(s) -
Ming Li,
Min Xu,
Huizhou Liu
Publication year - 1996
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.45.1380
Subject(s) - exponent , scaling , materials science , kinetics , chemical physics , growth model , domain (mathematical analysis) , symmetry (geometry) , condensed matter physics , growth rate , annealing (glass) , thermodynamics , physics , mathematics , quantum mechanics , geometry , metallurgy , mathematical analysis , philosophy , linguistics , mathematical economics
We have studied the ordering processes of Ag on Si (111) by LEED using a homemade high re-solution spot profile measuring equipment. The results show that the growth processes of Ag 31/2 domain satisfy scaling symmetry. They are self-similar growth processes. The studies also show that the growth exponent is near 1/2 in the early stage of the growth processes. We propose a growth mechanism of Ag diffusing from Ag(111) islands to form Ag 31/2 domains. This article also suggests a way to obtain perfect surface structures in lower temperature by using light-assisted anneal.