Epitaxial growth of a silicene sheet

By B. Lalmi, H. Oughaddou, H. Enriquez, Abdelkader Karae, S. Vizzini, B. Ealet, B. Aufray. 2010

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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.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/5d18ca399b3bd7dad28b0ccc584ff3561ca6b7af