Fig. 1From: Strain Tunable Bandgap and High Carrier Mobility in SiAs and SiAs2 Monolayers from First-Principles StudiesGeometrical structure and electron density distribution of monolayers SiAs and SiAs2. (Color online) Top and side views of monolayers a SiAs and b SiAs2 geometrical structure and electron density distribution and the associated Brillouin zone. The blue and green ball indicate the Si and As atom, respectivelyBack to article page