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 × 1 surfaces. 2 × 2, c2 × 8 and c2 × 4 structures appear at 300 K under the condition that only Coulomb repulsion is introduced as a pair interaction between adatoms. The adatom density increases with the temperature, and √3 × √3 structures appear at 550 °C. These results agree with our recent STM observations.
Original language | English |
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Pages (from-to) | 375-381 |
Number of pages | 7 |
Journal | Surface Science |
Volume | 389 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 1997 Nov |
Keywords
- Computer simulations
- Silicon
- Single crystal surfaces
- Surface relaxation and reconstruction
- Surface thermodynamics
ASJC Scopus subject areas
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry