Bandgap engineering in an epitaxial two-dimensional honeycomb Si${}_{6-x}$Ge${}_x$ alloy

Antoine Fleurence, Yuto Awatani, Camille Huet +4

In this Letter, we demonstrate that it is possible to form a two-dimensional (2D) silicene-like Si${}_5$Ge compound by replacing the Si atoms occupying on-top sites in the planar-lik…