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Atomic-scale friction modulated by a buried interface : combined atomic and friction force microscopy experiments

Maier, S. and Gnecco, E. and Baratoff, A. and Bennewitz, R. and Meyer, E.. (2008) Atomic-scale friction modulated by a buried interface : combined atomic and friction force microscopy experiments. Physical Review B, Vol. 78, H. 4 , 045432, 5 S..

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Official URL: http://edoc.unibas.ch/dok/A5262100

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Abstract

Combined atomic and friction force microscopy reveals a significant modulation of atomic-scale friction related to the small periodic rumpling induced at the interface between heteroepitaxial films of KBr on NaCl(100). Transitions from dissipative atomic-scale stick slip to smooth sliding with ultralow friction are observed within the 6x6 surface unit cell of the underlying superstructure. Scanning across atomic-scale defects confirms the high-resolution capabilities of friction force microscopy close to the ultralow friction state. Strong variations of the tip-surface interaction energy across the superstructure demonstrate that subsurface chemical and size inhomogeneities dramatically change the frictional properties of the surface probed by the microscope tip.
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 13:48

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