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The structure of the polar Sn-doped indium oxide (001) surface
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View: Figures


Image of FIG. 1.
FIG. 1.

Unit cell of the bixbyite cell in side (a) and top (b) view. Light and dark green small balls indicate In atoms in distorted and regular octahedral coordination, respectively. Oxygen atoms are colored in three different shades depending on their position relative to an upper In layer; dark brown (lowest), red (middle), and light brown (top). Dashed and curved full boxes indicate dipole-free repeat units. (c) Top view of an surface with O atoms dimerized as in Ref. 4. At the top-right small and large boxes are surface and bulk unit cells, respectively. At bottom the irreducible representation ( symmetry elements) is indicated.

Image of FIG. 2.
FIG. 2.

RHEED patterns taken along the [100] direction of (a) the YSZ substrate and (b) a 3.8 nm thick epitaxial ITO(001) film. LEED patterns of (c) the YSZ(001)- substrate, taken at a temperature of , (d) ITO(001) with 15.6 at. % .

Image of FIG. 3.
FIG. 3.

STM images and top-view models of ITO(001) films with different Sn content. (a), (b) 15.6 at% Sn, (a) , , ; (b) , , ; (c) 3.6 at. % Sn, , , , . The white dots in the models in (d), (e) represent O dimers; in (e) 1/3 of the dimers have been removed to mimick the zig-zag structure observed in (c).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The structure of the polar Sn-doped indium oxide (001) surface