Unveiling the pentagonal nature of perfectly aligned single-and double-strand Si nano-ribbons on Ag(110)

Abstract

The atomic structure of Si nanoribbons on metallic surfaces has been disputed for years and yet remained elusive. Here, the authors unveil the nature of aligned Si nanoribbons on Ag(110), shifting the focus from a hexagonal silicene-like arrangement to a 1D phase solely comprising Si pentagons.