Fig. 2: The binding energies and ratio for many-body effect and vdW interaction of Ti₂CF₂ and NG systems.

Computed binding energies for a LiPSs on Ti₂CF₂ and b LiPSs on NG with the PBE + vdW^surf and PBE + MBD methods. The ratio for many-body effect (R_MBD) and vdW interaction (R_vdW) of binding energies in (c) Ti₂CF₂ systems and d NG systems.