Ansiotropy in friction and molecular stick-slip motion
RM Overney, H Takano, M Fujihira, W Paulus… - Physical Review Letters, 1994 - APS
RM Overney, H Takano, M Fujihira, W Paulus, H Ringsdorf
Physical Review Letters, 1994•APSA fundamental study of friction by friction force microscopy on an organic bilayer assembly is
presented. Frictional domains are observed with a real area of contact in the regime of the
lattice spacings. Their frictional contrast is changing in respect with the sliding direction.
Such a local anisotropic behavior of friction is shown to originate in different 2D crystal
orientations. On the molecular scale stick-slip motion is observed which can be related to the
macroscopic terms of static and dynamic friction.
presented. Frictional domains are observed with a real area of contact in the regime of the
lattice spacings. Their frictional contrast is changing in respect with the sliding direction.
Such a local anisotropic behavior of friction is shown to originate in different 2D crystal
orientations. On the molecular scale stick-slip motion is observed which can be related to the
macroscopic terms of static and dynamic friction.
Abstract
A fundamental study of friction by friction force microscopy on an organic bilayer assembly is presented. Frictional domains are observed with a real area of contact in the regime of the lattice spacings. Their frictional contrast is changing in respect with the sliding direction. Such a local anisotropic behavior of friction is shown to originate in different 2D crystal orientations. On the molecular scale stick-slip motion is observed which can be related to the macroscopic terms of static and dynamic friction.
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