Epitaxial growth of a silicene sheet

B. Lalmi, Hamid Oughaddou, Hanna Enriquez, Abdelkader Kara, S. Vizzini, Bénidicte Ealet, B. Aufray

Abstract

Using atomic resolved scanning tunneling microscopy, we present here the experimental evidence of a silicene sheet (graphenelike structure) epitaxially grown on a close-packed silver surface [Ag(111)]. This has been achieved via direct condensation of a silicon atomic flux onto the single-crystal substrate in ultrahigh vacuum conditions. A highly ordered silicon structure, arranged within a honeycomb lattice, is synthesized and present two silicon sublattices occupying positions at different heights (0.02 nm) indicating possible sp2-sp3 hybridizations.

Locations

• Applied Physics Letters - View
• arXiv (Cornell University) - View - PDF
• HAL (Le Centre pour la Communication Scientifique Directe) - View
• STARS (University of Central Florida) - View - PDF
• DataCite API - View