Fig. 1: The structure of 32 vdW materials.
From: Identification of two-dimensional layered dielectrics from first principles
Side and top views of the monolayer structures are shown, where the yellow squares represent the computational unit cells. Side views of the bilayer structures are also presented, showing the A–A and A–B stacking configurations. The measurement of the thickness of the monolayers (t) is indicated. Category 1 contains three similar structures, further divided in subcategories a, b and c.
