The morphology of Cu(111) after bombardment with 1 keV Ar ions and its
dependence on temperature have been investigated using STM. Qualitati
ve agreement is found with experiments conducted by other groups on Pt
(111), but with more pronounced temperature influences. In addition, i
nterlayer mass transport was observed to have a more important effect
on Cu(111). The Cu(111) surface only slowly approaches equilibrium sha
pe at room temperature. A series of images illustrates how the surface
changes over a period of several hours following ion bombardment. (C)
1997 Elsevier Science B.V.