Moving trajectory analysis and simulation in atomic friction for zigzag and armchair lattice orientation of MoS2

A friction modeling in zigzag and armchair lattice orientation of MoS₂ has been demonstrated in this paper. Combing the assumption on the moving trajectories of the probe in both lattice orientations with two-dimension Tomlinson model, simulation of relationship between friction and orientation was smoothly performed with Matlab software. The lateral friction Microscopy(LFM) based experiment was conducted to verify the theoretical analysis. The consistency between simulating and realistic result reveals the validity of the entire modeling method, which is critically important for the fundamental study of the relationship between friction force and lattice orientation of MoS₂ as well as its future application in real-time orientation detecting .