| Numéro |
J. Phys. I France
Volume 1, Numéro 4, April 1991
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|
|---|---|---|
| Page(s) | 445 - 448 | |
| DOI | https://doi.org/10.1051/jp1:1991144 | |
DOI: 10.1051/jp1:1991144
J. Phys. I France 1 (1991) 445-448
J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, Dolejskova 3, CS-182 23 Prague 8, Czechoslovakia
© Les Editions de Physique 1991
J. Phys. I France 1 (1991) 445-448
A model of step geometry on the reconstructed W (001) surface
S. PickJ. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, Dolejskova 3, CS-182 23 Prague 8, Czechoslovakia
(Received 25 January 1991, accepted 12 February 1991)
Abstract
The values of surface force constants indicate the presence of compressive surface stress on the ideal W (001) surface, supposing
that surface interactions can be described by an effective two-body potential. Combining this idea with a phenomenological
model of Roelofs et al., we find that surface steps should expand at their edges and that the polarization of the reconstruction on the W (001) surface
perpendicular to the step edge is preferred.
© Les Editions de Physique 1991