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Scanning tunneling microscopy (STM) investigations of Cu clusters grown on TiO 2 (110)-(1x1) have shown that exposure to oxygen causes small three dimensional (3D) clusters to dissociate into two dimensional (2D) structures at room temperature. Larger Cu clusters do not completely dissociate upon oxygen exposure, but the clusters become smaller. Although Ni is more easily oxidized than Cu,...
Scanning tunneling microscopy studies of Ni islands deposited on TiO 2 (110) show that the islands grow three-dimensionally at room temperature with an average height of approximately 6.5 Å and diameter of 30 Å. The broadness of the island size distributions can be controlled by the diffusion (D) to deposition flux (F) ratio, with the narrowest distribution corresponding to the smallest D/F...
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