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Towards a Microscopic Description of Friction

Published online by Cambridge University Press:  21 March 2011

Markus Porto
Affiliation:
Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Str. 38, 01187 Dresden, Germany
Veaceslav Zaloj
Affiliation:
Cornell University, Department of Computer Science, 4130 Upson Hall, Ithaca, NY 14853-4130, USA
Michael Urbakh
Affiliation:
School of Chemistry, Tel Aviv University, 69978 Tel Aviv, Israel(November 23, 2000)
Joseph Klafter
Affiliation:
School of Chemistry, Tel Aviv University, 69978 Tel Aviv, Israel(November 23, 2000)
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Abstract

We investigate the response of an embedded system subject to an external drive using a microscopic model. The shear is shown to excite “shearons”, which are collective modes of the embedded system with well defined spatial and temporal patterns that dominate the frictional properties of the driven system. We demonstrate that the slip relaxation in stick-slip motion and memory effects are well described in terms of the creation and/or annihilation of shearons.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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