fig10

Figure 10. Structure similarity of monolayer GeSe, PbTe, and hBN. (A) Atomic structure of monolayer GeSe; (B) Basic structure of monolayer GeSe with all dihedral angles in the range between 90° and 180°; (C) Basic structure of monolayer PbTe with all dihedral angles equal to 90°; (D) Basic structure of monolayer hBN with all dihedral angles equal to 180°. hBN: Hexagonal boron nitride; 2D: two-dimensional.