Figure 5.

Oxygen-induced surface structure on Cu(001). (a) Oxygen atoms (grey) form a c(2 × 2) adsorbate structure on Cu(001) at 300 K. (b) Oxygen-adsorption at 500 K leads to the missing row $(\sqrt{2}\times 2\sqrt{2})\text{R}45°$ reconstructed surface. The arrows indicate the missing rows of Cu surface atoms. Unit cells of the structures are indicated by the dashed white line.