(2X1)-]C(4X2) TRANSITION AT THE SI(100) SURFACE - A 1ST-PRINCIPLES-BASED MONTE-CARLO STUDY Conference Paper uri icon

abstract

  • Tight-binding molecular dynamics simulations have been performed for the Si(100) surface, with parameters fitted to first-principles calculations for a variety of surface geometries. The simulations yield a value J=-15 meV for the dimer-dimer coupling constant along a row, and an upper limit of |J|=5 meV for the coupling across rows. These values, which differ from those of a previous study, give a two-dimensional Ising-model phase transition below 300 K, in agreement with LEED and low-temperature STM studies. 1994.

published proceedings

  • PHYSICA B

author list (cited authors)

  • GRYKO, J., & ALLEN, R. E.

citation count

  • 2

complete list of authors

  • GRYKO, J||ALLEN, RE

publication date

  • February 1994