Figure 4
From: Toward steering the motion of surface rolling molecular machines by straining graphene substrate
(a) The potential energy of the interactions between nanotruck and graphene surface. (b) The net driving forces, and (d) the diffusion coefficients of the nanotruck at different strain gradients of substrate, from theoretical and computational approaches. (c) The mean square displacement of the nanocar is computed from the simulations as a function of time.
