Atomic-scale control of friction by actuation of nanometer-sized contacts

Socoliuc, Anisoara and Gnecco, Enrico and Maier, Sabine and Pfeiffer, Oliver and Baratoff, Alexis and Bennewitz, Roland and Meyer, Ernst. (2006) Atomic-scale control of friction by actuation of nanometer-sized contacts. Science, Vol. 313, H. 5784. pp. 207-210.

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Official URL: http://edoc.unibas.ch/dok/A5262111

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Stiction and wear are demanding problems in nanoelectromechanical devices, because of their large surface-to-volume ratios and the inapplicability of traditional liquid lubricants. An efficient way to switch friction on and off at the atomic scale is achieved by exciting the mechanical resonances of the sliding system perpendicular to the contact plane. The resulting variations of the interaction energy reduce friction below 10 piconewtons in a finite range of excitation and load, without any noticeable wear. Without actuation, atomic stick-slip motion, which leads to dissipation, is observed in the same range. Even if the normal oscillations require energy to actuate, our technique represents a valuable way to minimize energy dissipation in nanocontacts.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:27
Deposited On:22 Mar 2012 13:56

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