Fig. 1. Graphene slides on substrates: (a) On h-BN, model a; (b) on borophene, model b.石墨烯在固定基底上滑动的模型　(a) 石墨烯在h-BN上, 模型a; (b) 石墨烯在硼烯上, 模型b

Fig. 2. Force and interface potential between graphene and h-BN during the sliding process: (a) The interface potential from phase I to phase III; (b) the force between graphene and h-BN; (c) the interaction between C and N atoms; (d) the interaction between C and B atoms.石墨烯与h-BN在相对滑动过程中的层间作用力F_LJ与势能V_LJ 　(a) 石墨烯与h-BN之间的势能; (b) 石墨烯与h-BN之间的作用力; (c) 石墨烯中的C与N原子的相互作用; (d) C与B原子的相互作用

Fig. 3. Force and interface potential between graphene and borophene during the sliding process.石墨烯与硼烯相对滑动过程中界面间的相互作用力和势能

Fig. 4. Corrugation and pull out force between graphene and h-BN, borophene under different load:　(a) P_b; (b) F_exit. 不同载荷下石墨烯与h-BN和硼烯之间势能起伏和拉出力　(a) 势能起伏P_b; (b) 拉出力F_exit

Fig. 5. Influence of graphene size on P_b under different load 在不同的载荷下, 不同尺寸的石墨烯相对硼烯滑动时界面间的势能起伏

Table 1. Parameters for Lennard-Jones potential.