A detailed structural model of the indium-induced Ge(103)-(1 x 1) surface reconstruction was established by analyzing an extensive set of X-ray data recorded with synchrotron radiation. The results show that models with one indium and one germanium adatom per unit cell were incompatible with the data. A model with two indium adatoms per unit cell saturated all the dangling bonds on the Ge(103) surface, preserves the symmetry and was compatible with all of the experimental results.

Structure Determination of the Indium-Induced Ge(103)-(1 x 1) Reconstruction by Surface X-Ray Diffraction. O.Bunk, G.Falkenberg, J.H.Zeysing, L.Lottermoser, R.L.Johnson, M.Nielsen, F.Berg-Rasmussen, R.Feidenhans: Applied Surface Science, 1999, 142[1-4], 88-93