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Static and dynamic properties of frictional phenomena in a one-dimensional system with randomness

Takaaki Kawaguchi·Hiroshi Matsukawa
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Abstract

Static and dynamic frictional phenomena at the interface with random impurities are investigated in a two-chain model with incommensurate structure. Static frictional force is caused by the impurity pinning and/or by the pinning due to the regular potential, which is responsible for the breaking of analyticity transition for impurity-free cases. It is confirmed that the static frictional force is always finite in the presence of impurities, in contrast to the impurity-free system. The nature of impurity pinning is discussed in connection with that in density waves. The kinetic frictional force of a steady sliding state is also investigated numerically. The relationship between the sliding velocity dependence of the kinetic frictional force and the strength of impurity potential is discussed.

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Takaaki Kawaguchi, Hiroshi Matsukawa. 1997-06-26. Static and dynamic properties of frictional phenomena in a one-dimensional system with randomness. https://doi.org/10.1103/physrevb.56.4261

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