Surface Geometric Structures of Cu Deposited upon α-Al2O3 (0001) |
| Q. Guo, P.J. Møller Laboratory of Physical Chemistry, H.C. Ørsted Institute, University of Copenhagen, 2100 Copenhagen, Denmark and L. Gui Institute of Physical Chemistry, Peking University, Beijing, P.R. China |
| Received: February 19, 1992; revised version: May 4, 1992 |
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| Upon deposition of Cu on a 1 × 1 α-Al2O3 (0001) surface at room temperature the surface structure was found to change with increasing amounts of Cu deposited, from two-dimensional monolayer islands through three-dimensional nuclei until reaching a thin film. Subsequent surface heat-treatment to 650°C produced a stable Cu(111)-R30° superstructure as observed by LEED. |
| DOI: 10.12693/APhysPolA.81.647 PACS numbers: 68.65.+g, 68.55.Bd |