Predictions and Observations of Multiple Slip Modes in Atomic-Scale Friction

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Medyanik, Sergey N.
Kam Liu, Wing
Sung, In-Ha
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Using the quasistatic Tomlinson model as a simple representation of an atomic force microscope, conditions for transitions in atomic-scale friction behavior from smooth sliding to single slips and then multiple slip regimes are derived based on energy minimization. The calculations predict and give a general explanation for transitions between different stick-slip regimes in the limit of low damping. The predictions are consistent with experimental observations of these transitions.

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2006-09-27
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© American Physical Society. Reprinted from Physical Review Letters, Volume 97, Article 136106, September 2006, 4 pages. Publisher URL: http://dx.doi.org/ 10.1103/PhysRevLett.97.136106 NOTE: At the time of publication, author Robert W. Carpick was affiliated with the University of Wisconsin-Madison. Currently (January 2007), he is a faculty member in the Department of Mechanical Engineering and Applied Mechanics at the University of Pennsylvania.
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