The formation of the O/Cu(110)-(2 x 1) and H/Cu(110)-(1 x 2) superstructures was investigated by a low-energy electron diffraction beam profile analysis. The oxygen induced reconstruction proceeded at later stages by creation of holes on flat terraces. This could not be observed at the hydrogen induced missing row reconstruction. The formation of the missing row structure proceeded most probably via nucleation at steps and subsequent growth of (1 x 2) islands. The influence of different distributions of steps and islands on beam profiles was discussed.

Adsorption Induced Reconstruction of the Cu(110) Surface. W.Moritz, R.Zuschke, S.Pflanz, J.Wever, D.Wolf: Surface Science, 1992, 272[1-3], 94-101