Fig. 4: Electronic-property map of the 2D III2–VI3 CDWs and the comparison with other reported 2D CDW materials.
From: Complex charge density waves in simple electronic systems of two-dimensional III2–VI3 materials
a–h Simulated STM patterns of the \(\sqrt{13}\times \sqrt{13}\) c-SoD CDW phase in 2D III2–VI3 family. i The HSE bandgaps of high-symmetry βc phase (gray) and the c-SoD CDW phase (green) of 2D III2–VI3. j Electronic-property map of 2D III2–VI3 CDW and previously reported 2D or quasi−2D CDW materials, the horizontal axis indicates the bandgap of the pristine high-symmetry phase, and the vertical axis indicates the bandgap of the CDW phase. The purple circle marked with coordinates (0, 0) encompasses materials in which the bandgap remains zero both before and after the CDW transition. All the bandgaps of the previously reported materials are obtained from the published literature14,47,48,49,50,51,52,53,54,55,56,57,58,59.
