Angular dependence of atomic friction with deformable substrate
The atomic stick-slip behavior of Prandtl-Tomlinson model sliding on 2D deformable substrate is studied. The influence of the shape of the interaction potential is investigated in details in the well-known phenomenon of the two-dimensional stick-slip friction. Numerical simulations are built to observe the influence of the geometry and orientation. The results show that the friction force has a maximum at r=− 0.6, this value of the shape parameter indicates a transition from a clear stick-slip at r> − 0.6 to a distorted stick-slip at r> − 0.6. We find a remarkable transition of the frictional force image pattern depending on the shape of the substrate. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2015
Year of publication: |
2015
|
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Authors: | Kenmoé, G. ; Takoutsing, C. ; Kofané, T. |
Published in: |
The European Physical Journal B - Condensed Matter and Complex Systems. - Springer. - Vol. 88.2015, 1, p. 1-7
|
Publisher: |
Springer |
Subject: | Solid State and Materials |
Saved in:
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