Introduction to VEDA: Virtual Environment for Dynamic AFM
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This learning module describes the motivation, theory, and features of VEDA- a Virtual Environment for Dynamic Atomic Force Microscopy for the accurate simulation of dynamic AFM on organic and inorganic surfaces. Following the motivation and theory, two specific examples are illustrated, one using the Dynamic Approach Curve (DAC) tool and another using the Amplitude Modulated Scanning (AMS) tool. The first example explores how VEDA can be used to understand the imaging forces applied to a polymer sample in dynamic AFM while the second illustrates how both changes in elasticity as well as viscosity over different parts of a polymer sample can lead to different extents of phase contrast.
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