[Pw_forum] A puzzle about the aborption energy curve calculation

[Weiguang Chen]

Hi friends,
Many authors show the absorption energy curve function as the change of
adsorption heigth in their papers for looking for the potential barrier, and
they usually hold the system unrelaxed. But i have a puzzle about it, i
think  the system may be unstable which is placed different heigth, and some
even change largely especially near the surface, which mean the system
structure is not the initial anymore.
How do i solve my puzzle?
Thanks
-- 
Best Wishes
ChenWeiguang
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