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Operation movies for CG "Geometry Optimizing AFM Image Simulator" calculates the tip-sample interaction and considers the deformation of the molecule. It obtains the stable conformation of a molecule by searching the energy minimum of the molecular system. It simulates not only in vacuum but also in water based on the RISM method. It provides five modes as follows. |
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Constant-height mode We derive the forces to the tip which scans on the sample surface at a constant height.
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Constant-force mode We search the tip heights on the sample surface where the force to the tip is equal to the specified value. (Not available for a calculation in water)
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Non-contact mode height constant We derive the forces to the tip which scans on the sample surface while oscillating around a constant height. As a result, we obtain a frequency shift image and an energy dissipation image.
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Force curve measurement mode We derive the forces to the tip which comes up to the sample at a specified position on the sample surface.
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Minimum power mode We search the tip heights on the sample surface where the force to the tip may be mimimum. (Not available for a calculation in water)
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