Virtual Environment for Dynamic AFM

Simulates amplitude vs distance curves and interaction forces for dynamic atomic force microscopy

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Archive Version 1.0
Published on 02 Jul 2008, unpublished on 20 May 2009 All versions

doi:10.4231/D3K931585 cite this

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Abstract

Dynamic Approach Curves is the premier tool of a suite of tools being developed under the title of VEDA - Virtual Environment for Dynamic AFM. This tool accurately simulates the oscillations and tip-sample interaction forces of an AFM cantilever probe excited near resonance and brought close to a sample in either ambient conditions or ultra high vacuum. This tool features (a) accurate models of AFM probe dynamics, (b) realistic tip-sample interaction force models and (c) accurate, FORTRAN based, numerical integration schemes that are well-suited for non-smooth, nonlinear differential equations. From the tip oscillation time histories, which are simulated with a relative tolerance of 1e-9, quantities such as amplitude and phase of the first harmonic, peak interaction force, mean interaction force, and power dissipation are calculated. For detailed information about this tool, please consult the User's Guide.

Credits

This work was funded by the Network for Computational Nanotechnology (NCN).

References

Cite this work

Researchers should cite this work as follows:

  • John Melcher, Shuiqing Hu, Arvind Raman (2007), "Virtual Environment for Dynamic AFM," https://nanohub.org/resources/dynamicafm. (DOI: 10.4231/D3K931585).

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