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arXiv · 1204.0523

Epitaxial Growth of a Silicene Sheet

Boubekeur Lalmi·Hamid Oughaddou·Hanna Enriquez·Abdelkader Karae·Sébastien Vizzini·Bénidicte Ealet·Bernard Aufray
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Abstract

Using atomic resolved scanning tunneling microscopy, we present here the experimental evidence of a silicene sheet (graphene like 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 ultra-high vacuum conditions. A highly ordered silicon structure, arranged within a honeycomb lattice is synthesized and presenting two silicon sub-lattices occupying positions at different heights (0.02 nm) indicating possible sp2-sp3 hybridizations.

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Boubekeur Lalmi, Hamid Oughaddou, Hanna Enriquez, Abdelkader Karae, Sébastien Vizzini, Bénidicte Ealet, Bernard Aufray. 2013-06-16. Epitaxial Growth of a Silicene Sheet. https://doi.org/10.1063/1.3524215

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