Effect of Deformation on Surface Characteristics of Finite Metallic Crystals

Details Effect of Deformation on Surface Characteristics of Finite Metallic Crystals Effect of Deformation on Surface Characteristics of Finite Metallic Crystals

2003-10-08

arxiv.org/abs/cond-mat/0310176v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

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.

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