Figure 5

(a) The distribution of interference colours after spreading the magnetic powder on the surface of the MoS₂ thin films at T₀; (b) interference colours after most particles were removed by the magnetic force within 4 minutes; (c) relative height-position curves plotted based on relative heights determined according to the distribution of interference coloured fringes in (a,b) and the fitting curvature of the MoS₂ thin films; and (d) schematic diagram of the “simple beam” model. The left end is fixed, while the right end can move freely.