Interaction potential and hopping dynamics governing sliding friction

Riedo, E. and Gnecco, E. and Bennewitz, R. and Meyer, E. and Brune, H.. (2003) Interaction potential and hopping dynamics governing sliding friction. Physical review letters, Vol. 91, H. 8 , 084502, 4 S..

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Official URL: http://edoc.unibas.ch/dok/A5262128

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The friction force on a nanometer-sized tip sliding on a surface is related to the thermally activated hopping of the contact atoms on an effective atomic interaction potential. A general analytical expression relates the height of this potential and the hopping attempt frequency to measurements of the velocity dependence of the friction force performed with an atomic force microscope. While the height of the potential is roughly proportional to the normal load, the attempt frequency falls in the range of mechanical eigenfrequencies of the probing tip in contact with the surface.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:53

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