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- W2065403619 endingPage "L758" @default.
- W2065403619 startingPage "L752" @default.
- W2065403619 abstract "The Stillinger-Weber model potential is applied to study the Si(001) 2×1 surface. Molecular dynamics computer simulation has used a cluster of 1280 atoms with periodic boundary conditions in two dimensions, the surface-vacuum interface being modelled by a slab configuration containing twenty atomic planes. It is shown that the model potential readily leads to a dimer model with substantial sub-surface relaxations. The model is free of any y-twist (direction normal to the dimerization direction) which was invoked by a LEED investigation. The electronic total energy calculations for the present model give significantly lower energy than a simple dimer model without sub-surface relaxations but not lower than the asymmetric buckled dimer model. The calculation also suggests that molecular dynamics with a model silicon potential may provide a useful starting point for a complex reconstruction which can be further improved by other first principles methods." @default.
- W2065403619 created "2016-06-24" @default.
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- W2065403619 date "1985-11-01" @default.
- W2065403619 modified "2023-09-24" @default.
- W2065403619 title "A model potential study of the Si(001) 2×1 surface" @default.
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- W2065403619 doi "https://doi.org/10.1016/0167-2584(85)90878-3" @default.
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