“…This probe is made of 1-10 Ωcm Phosphorus doped Si, with a nominal spring constant (k z ) and resonance frequency known to be 3 N/m and 50 kHz, respectively (Bruker Corp., 2011). The dimensions were measured to be L cant = 485 m, L tip = 20 m, which is in agreement with other previous measurements (Rogers et al, 2004;Vázquez et al, 2009). L cant is the length of the portion of the cantilever between the base of the cantilever and the tip.…”