[Zurück]

Y. Gauthier, M. Schmid, W. Hebenstreit, P. Varga:
"Surface structure of the missing-row reconstruction of VC_0.8(110): a scanning tunneling microscopy analysis";
Surface Science, 547 (2003), S. 394 - 402.

Scanning tunnelling microscopy (STM) was used to study the (110) surface of a VC0.8 sample. The surface shows a missing-row reconstruction, i.e., a
grating structure with ridges and valleys oriented along the [001] direction and (100) and (010) facets. We did not find unreconstructed (110) terraces. The
regular spacing of the ridges corresponds to a periodicity of (3x1) or (4x1), depending on preparation, presumably related to different concentrations of
carbon vacancies. In the STM images, we can also observe apparent pairing of atoms in the rows, leading to the larger c(6x2) and (4x2) superstructure cells,
which also show up in LEED. We attribute these additional periodicities to ordering of carbon vacancies in the surface rows.

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC04405812

http://www.iap.tuwien.ac.at/www/SURFACE/abstracts/A2003E07.HTML