Effect of fixed particles on periodic adatom arrangements on Si(111) unreconstructed surfaces

T. Watanabe, T. Handa, T. Hoshino, I. Ohdomari

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2 Citations (Scopus)


Time-independent and -dependent Monte Carlo simulations of a two-dimensional lattice gas were performed to investigate the effect of fixed particles on periodic adatom arrangements on Si(111) 1 × 1 surfaces. In both the simulations introducing fixed particles, domains of the periodic structures were divided into small fragments around them. This can be explained by the fixed particles reducing the degree of freedom of the adatom configurations so the number of ways of reaching the uniform configuration is highly restricted. Based on the simulations, we predict that a large 1 × 1 region without any obstacle impurities is desirable to obtain a large periodic structure of Si adatoms.

Original languageEnglish
Pages (from-to)6-12
Number of pages7
JournalApplied Surface Science
Publication statusPublished - 1998 Jun



  • Domain fragmentation
  • Fixed particle
  • Monte Carlo simulation
  • Si adatom
  • Si(111)

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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