Raoul van Gastel2
1. IMM Solid State Chemistry, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
2. University of Twente, Solid State Physics, MESA+ Institute for Nanotechnology, PO Box 217, 7500 AE Enschede, The Netherlands
Using a combination of surface X-ray diffraction and low-energy electron microscopy, we have determined the structure of several ordered and disordered phases of Bi on Cu(111) and the transitions between these structures. At low coverage, a surface alloy is formed that is initially disordered but that orders into √3 domains up to a coverage of 1/3 ML. For increasing coverage, de-alloying ...