Faculté des sciences

## Stabilization of silicon honeycomb chains by trivalent adsorbates

### In: Europhysics Letters (EPL), 2007, vol. 77, no. 36003, p. 1-5

The atomic structure of self-assembled quasi-one-dimensional Gd chains on Si(111) has been investigated by low-energy electron diffraction and scanning tunneling microscopy. Based on comparison between Gd and Ca chains we show that this Gd-induced surface reconstruction belongs to the class of honeycomb chain-channel structures. This clearly demonstrates that, besides monovalent and divalent... More