Figure 4 : Deformation mechanism.

From: Negative Poisson’s ratio in 1T-type crystalline two-dimensional transition metal dichalcogenides

Figure 4

The solid and dashed M–X bonds indicate, respectively, the initial and final configurations at each relaxation step. The force is applied along the lattice-a direction. The red dashed arrows indicate the direction of the t2g-p orbital interaction. The hollow blue arrows show the resulting movement of the X and M2 atoms within the Q–X–M2 plane.