  The surface stress and the contact potential differences of elastically
deformed faces of Al, Cu, Au, Ni, and Ti crystals are calculated within the
modified stabilized jellium model using the self-consistent Kohn-Sham method.
The obtained values of the surface stress are in agreement with the results of
the available first-principal calculations. We find that the work function
decreases/increases linearly with elongation/compression of crystals. Our
results confirm that the available experimental data for the contact potential
difference obtained for the deformed surface by the Kelvin method do not
correspond to the change of the work function but to the change of the surface
potential. The problem of "anisotropy" of the work function and ionization
potential of finite sample is discussed.
