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Phys Rev Lett. 2004 Dec 3;93(23):230802. Epub 2004 Dec 3.

Nonmonotonic velocity dependence of atomic friction.

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1
Universität Bielefeld, Fakultät für Physik, 33615 Bielefeld, Germany.

Abstract

We propose a theoretical model for friction force microscopy experiments with special emphasis on the realistic description of dissipation and inertia effects. Its main prediction is a nonmonotonic dependence of the friction force upon the sliding velocity of the atomic force microscope tip relative to an atomically flat surface. The region around the force maximum can be approximately described by a universal scaling law and should be observable under experimentally realistic conditions.

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