Popis: |
The surface structure of TiO 2 (1 1 0)-p(1 × 1), p(1 × 2) and p(1 × 3) were studied using impact collision ion scattering spectroscopy (ICISS). We found that (i) the height of bridging oxygen for the p(1 × 1) is comparative to that of bulk structure, (ii) the p(1 × 2) surface has the added Ti 2 O 3 unit rows proposed by Onishi et al. and also the oxygen atoms rows between Ti 2 O 3 unit rows and (iii) the p(1 × 3) surface is constructed with the same added Ti 2 O 3 unit rows as that in the p(1 × 2) surface, but the bridging oxygen rows exist between the Ti 2 O 3 unit rows. |