Abstract
In the present investigation we used scanning and transmission electron microscopy to study the cleaved sodium chloride surface. Several metals with different melting points were used to decorate the cleavage steps. It was observed that step decoration can be achieved with epitaxial, polycrystalline and amorphous thin films. The difference in the nucleation density at steps and edges and the nucleation density at smooth surfaces is attributed to the smaller activation energy required to nucleate an island in the former case. The pitting on NaCl could be caused by a contaminated vacuum system or by the exposure of the cleaved face to air.
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