Figure 3: Comparison with the continuum mechanics models.

(a) The horizontal folds of WSe2, scale bar, 1 nm. Open circles stand for the atomic positions, and red solid line is the elastic models calculated by continuum mechanics (horizontal cross-section view), same for the cases in b,c. (b) Horizontal folds of graphene, scale bar, 0.5 nm. (c) Vertical fold of WS2, scale bar, 1 nm.