Co-induced nano-structures on Si(111) surface

Details Co-induced nano-structures on Si(111) surface Co-induced nano-structures on Si(111) surface

2008-11-21

arxiv.org/abs/0811.3456v1

Applied Surface Science 254 (2008) 7684

Physics

Condensed Matter

Materials Science

4pages 4figures

Scientific paper

10.1016/j.apsusc.2008.01.136

The interaction of cobalt atoms with silicon (111) surface has been investigated by means of scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED). Besides the Co silicide islands, we have successfully distinguished two inequivalent Co-induced $\sqrt{13}\times\sqrt{13}$ reconstructions on Si (111) surface. Our high-resolution STM images provide some structural properties of the two different $\sqrt{13}\times\sqrt{13}$ derived phases. Both of the two phases seem to form islands with single domain. The new findings will help us to understand the early stage of Co silicide formations.

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