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. 2014 Nov 18;5:2149–2163. doi: 10.3762/bjnano.5.224

Figure 5.

Figure 5

(a) Standard nonlinear solid (SNLS) model. (b) Tip force trajectory for a tip under a numerically simulated (not prescribed) tapping mode trajectory interacting with a SNLS sample. The inset in (b) shows the position of the surface and the dashpot over one fundamental oscillation. The parameters for the cantilever dynamics were the same as in Figure 2b. The parameters for kDMT were the same as in Figure 4. The parameters k and c were set to 7.5 N/m and 0.5 × 10−5 N·s/m, respectively. The blue and red arrows in (b) correspond to approach and retraction of the tip, respectively.