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Two-dimensional simulation of superlubricity on NaCl and highly oriented pyrolytic graphite

Steiner, Pascal and Roth, Raphael and Gnecco, Enrico and Baratoff, Alexis and Maier, Sabine and Glatzel, Thilo and Meyer, Ernst. (2009) Two-dimensional simulation of superlubricity on NaCl and highly oriented pyrolytic graphite. Physical Review B, Vol. 79, H. 4 , 045414, 9 S..

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Official URL: http://edoc.unibas.ch/dok/A5262094

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Abstract

The friction between an atomically sharp tip and a solid surface (NaCl and highly oriented pyrolytic graphite) is analyzed theoretically in the framework of a modified Tomlinson model in two dimensions. Lateral forces are studied as a function of temperature, load, and magnitude of actuation. The actuation leads to a reduction in friction and allows one to enter a dynamic superlubricity regime. In addition, our model is able to describe other ultralow friction states as static superlubricity and thermolubricity. We find a good agreement between the calculations and the experimental results.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Institute of Physics
ISSN:0163-1829
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:25
Deposited On:22 Mar 2012 13:49

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