Analysis of force curves

The force curves measured during the retraction of the NADIS tip is the only information available during the deposition. It corresponds to the capillary force exerted by the liquid meniscus bridging the tip and the surface. These curves strongly differ from the ones obtained with a standard dry atomic force microscope tip on a surface. Examples of curves obtained using various NADIS tips are reported in Fig. 12.12. 

The adequate description provided by this model for the capillary force exerted on the tip by the liquid meniscus can also be 

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