Trajectory fluctuations accompanying the manipulation of spherical nanoparticles

Rao, Akshata and Wille, Marie-Luise and Gnecco, Enrico and Mougin, Karine and Meyer, Ernst. (2009) Trajectory fluctuations accompanying the manipulation of spherical nanoparticles. Physical Review B, Vol. 80, H. 19 , 193405, 4 S..

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Official URL: http://edoc.unibas.ch/dok/A5262084

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We relate the frictional forces acting on spherical nanoparticles pushed by a scanning probe tip on a flat surface to the trajectories of the particles. Based on a simple collisional model, we predict that the average direction of motion of the nanoparticles is almost independent of the friction force, whereas the fluctuations of the particle directions are inversely proportional to friction. The model is applied to interpret the trajectory fluctuations and the apparent discontinuities observed when spherical gold particles are manipulated on a silicon-oxide surface by atomic force microscopy.
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 Institute of Physics
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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