STM images of the z'-TiO x phase grown on Pt 3 Ti(111): (a) An overview image (50 × 50 nm; U B = 1.57 V; I T = 160 pA) of the clean oxide phase. In the upper left area, oxide-free patches of the metallic substrate can still be found. (b) An atomic resolution scan (9.4 × 9.4 nm; U B = 1.22 V; I T = 160 pA) of the z'-TiO x phase with a marked unit cell. The dark areas inside the trenches represent holes in the oxide film. (c) The z'-TiO x phase after deposition of W 3 O 9 (≈0.1 monolayer coverage; 40 × 40 nm; U B = 1.00 V; I T = 86 pA). The clusters are always aligned along the trenches. (d) A submolecular resolution scan (7.7 × 7.7 nm; U B = 1.00 V; I T = 86 pA) of individual W 3 O 9 clusters.

Contexts in source publication

Context 1

... that, we were able to show the outstanding interaction of W 3 O 9 and different oxide phases formed on the Pt 3 Ti(111) surface. Figure 1b show atomically resolved STM images of the z'-TiO x phase. Under the employed preparation conditions, most terraces are completely covered with the zigzag structure of the oxide. ...

Context 2

... the employed preparation conditions, most terraces are completely covered with the zigzag structure of the oxide. Only few oxide-free patches can be found, which show the characteristic titanium atomrelated hexagonal structure of the alloy substrate with a lattice vector of 5.5 ± 0.1 Å [28] (see upper left corner of Figure 1a). From LEED and STM measurements, a commensurate rectangular unit cell with a (6×3√3) superstructure with respect to the (1×1) spots of the alloy surface and with a size of 16.6 ± 0.2 Å × 14.4 ± 0.2 Å was determined [22,23]. ...

Context 3

... zigzag lines are approximately 1.4 nm apart from each other and separated by darker trenches. As shown in Figure 1b, the stripes consist of an irregular sequence of v-and w-shaped structural motifs. Hereby, the side of a v motif is always build up by four bright atoms with diverging interatomic distances, while the side of a w motif consists of only three bright atoms with a constant distance between them. ...

Context 4

... shown in Figure 1c and Figure 1d, it is very probable that W 3 O 9 clusters prefer to adsorb these defects inside the trenches of the z'-TiO x phase. The result is a 1D alignment of the clusters along the direction of the stripes. ...

Context 5

... shown in Figure 1c and Figure 1d, it is very probable that W 3 O 9 clusters prefer to adsorb these defects inside the trenches of the z'-TiO x phase. The result is a 1D alignment of the clusters along the direction of the stripes. ...