Article ID Journal Published Year Pages File Type
1678937 Ultramicroscopy 2007 6 Pages PDF
Abstract

We show that inconsistent-imaging dynamics, in which the cantilever oscillates in the attractive regime on substrate background but in the repulsive regime on sample, leads to artifacts in apparent height in AC mode Atomic force microscopy. Active Q control can be used to effectively tune the imaging dynamics. Increased effective Q promotes the attractive regime, improves imaging sensitivity, and results in less invasive imaging of soft biological molecules.

Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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