Amplitude Response of Single-Wall Carbon Nanotube Probes during Tapping Mode Atomic Force Microscopy: Modeling and Experiment
- Creators
- Kutana, A.
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Giapis, K. P.
- Chen, J.-Y-
- Collier, C. P.
Abstract
Imaging of surfaces with carbon nanotube probes in tapping mode results frequently in complex behavior in the amplitudeādistance curves monitored. Using molecular mechanics simulations, we calculate the force exerted on a nanotube pressed against a smooth surface as it undergoes deformation and buckling. This nonlinear force is then used in a macroscopic equation, describing the response of a damped harmonic oscillator, to predict the amplitude response of a nanotube AFM probe. Similarities between the prediction and experiment suggest that the complex amplitude response seen in the experiment may be explained by the nonlinearity in the force exerted on the nanotube and thus must not necessarily be related to the structure of the surface.
Additional Information
Ā© 2006 American Chemical Society. Received April 13, 2006; Revised Manuscript Received July 6, 2006. Publication Date (Web): July 26, 2006. This work was supported in part by NSF (CTS-0508096).Additional details
- Eprint ID
- 79740
- DOI
- 10.1021/nl060831o
- Resolver ID
- CaltechAUTHORS:20170802-084721974
- NSF
- CTS-0508096
- Created
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2017-08-02Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field