Elsevier

Applied Surface Science

Volume 72, Issue 4, December 1993, Pages 435-439
Applied Surface Science

Letter
Surface morphology of a mechanically pressed polycrystalline silver wire studied by scanning tunneling microscopy

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Abstract

The surface characteristics of a mechanically pressed polycrystalline silver wire have been studied for the first time by STM. Images obtained at low resolution indicate various morphological structures having broad and flat areas similar to Ag single-crystal samples. High-resolution images acquired in the constant-current mode were found to show individual silver atoms. Some of the images correspond to the Ag(111) single-crystal surface which has a 1 × 1 structure. It is believed that the surface topography depends on the pressure and the surface morphology of the laboratory vice used.

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