Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1999-08-03
Physics
Condensed Matter
Statistical Mechanics
6 pages, 3 figures, submitted
Scientific paper
We study the response to shear of a one-dimensional monolayer embedded between two rigid plates, where the upper one is externally driven. The shear is shown to excite ``shearons'', which are collective modes of the embedded system with well defined spatial and temporal pattern, and which dominate the frictional properties of the driven system. We demonstrate that static friction, stick-slip events, and memory effects are well described in terms of the creation and/or annihilation of a shearon. This raises the possibility to control friction by modifying the excited shearon, which we examplify by introducing a defect at the bottom plate.
Klafter Joseph
Porto Markus
Urbakh Michael
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