Adhesion Dynamics in Probing Micro- and Nanoscale Thin Solid Films

Figure 6

Nanoscale oscillations with 𝜇𝜒(𝑉)(cos(𝑘𝜏/𝑗)−2),𝜇𝜒(𝑉)=2𝑘,𝑘=−3, and 𝑗=3.

(a) Velocity-acceleration phase diagram at a constant contact area

(b) Slip penetration at a constant contact area

(c) Velocity-acceleration phase diagram at a variable contact area

(d) Stick-slip penetration at a variable contact area