MONTE-CARLO STUDY ON FORMATION OF PERIODIC STRUCTURES ON SI(111) SURFACES

Authors
WATANABE T HOSHINO T OHDOMARI I
Citation
T. Watanabe et al., MONTE-CARLO STUDY ON FORMATION OF PERIODIC STRUCTURES ON SI(111) SURFACES, Surface science, 389(1-3), 1997, pp. 375-381
Citations number
10
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
389
Issue
1-3
Year of publication
1997
Pages
375 - 381
Database
ISI
SICI code
0039-6028(1997)389:1-3<375:MSOFOP>2.0.ZU;2-1
Abstract
Monte Carlo simulations of a two-dimensional lattice gas in the grand canonical ensemble are performed to analyze the behavior of Si adatoms on Si(111)-1 x 1 surfaces. 2 x 2, c2 x 8 and c2 x 4 structures appear at 300 K under the condition that only Coulomb repulsion is introduce d as a pair interaction between adatoms. The adatom density increases with the temperature, and root 3 x root 3 structures appear at 550 deg rees C. These results agree with our recent STM observations. (C) 1997 Elsevier Science B.V.