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Transition from stick-slip to continuous sliding in atomic friction : entering a new regime of ultralow friction

Socoliuc, A. and Bennewitz, R. and Gnecco, E. and Meyer, E.. (2004) Transition from stick-slip to continuous sliding in atomic friction : entering a new regime of ultralow friction. Physical review letters, Vol. 92, H. 13 , 134301, 4 S..

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Official URL: http://edoc.unibas.ch/dok/A5262122

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Abstract

A transition from stick-slip to continuous sliding is observed for atomically modulated friction by means of a friction force microscope. When the stick-slip instabilities cease to exist, a new regime of ultralow friction is encountered. The transition is described in the framework of the Tomlinson model using a parameter eta which relates the strength of the lateral atomic surface potential and the stiffness of the contact under study. Experimentally, this parameter can be tuned by varying the normal load on the contact. We compare our results to a recently discussed concept called superlubricity.
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 Physical Society
ISSN:0031-9007
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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