%0 Book Section %1 statphys23_0776 %A Manini, N. %A Caruso, F. %A Santoro, G.E. %A Tosatti, E. %A Vanossi, A. %B Abstract Book of the XXIII IUPAP International Conference on Statistical Physics %C Genova, Italy %D 2007 %E Pietronero, Luciano %E Loreto, Vittorio %E Zapperi, Stefano %K atomic dynamics friction hardness lubrication materials mechanical nanoscale nonlinear properties scale solitons statphys23 topic-3 tribology wear %T Static friction on the fly: velocity pinning transitions of lubricants in motion %U http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=776 %X The dragging velocity of a model solid lubricant (a 1D harmonic chain) confined between sliding periodic substrates exhibits a phase transition between two regimes, respectively with quantized and with continuous lubricant relative velocities 1. The transition, occurring for increasing external driving force $F_ext$ acting on the lubricant, displays a large hysteresis (see figure), and has the features of depinning transitions in static friction, only taking place on the fly. Although different in nature, this phenomenon appears isomorphic to a static Aubry depinning transition in a Frenkel-Kontorova model, the role of particles now taken by the moving kinks of the lubricant-substrate interface. 1) A. Vanossi, N. Manini, G. Divitini, G.E. Santoro, and E. Tosatti, Phys. Rev. Lett. 97, 056101 (2006).

@incollection{statphys23_0776, abstract = {The dragging velocity of a model solid lubricant (a 1D harmonic chain) confined between sliding periodic substrates exhibits a phase transition between two regimes, respectively with quantized and with continuous lubricant relative velocities [1]. The transition, occurring for increasing external driving force $F_{\rm ext}$ acting on the lubricant, displays a large hysteresis (see figure), and has the features of depinning transitions in static friction, only taking place on the fly. Although different in nature, this phenomenon appears isomorphic to a static Aubry depinning transition in a Frenkel-Kontorova model, the role of particles now taken by the moving kinks of the lubricant-substrate interface. 1) A. Vanossi, N. Manini, G. Divitini, G.E. Santoro, and E. Tosatti, Phys. Rev. Lett. 97, 056101 (2006).}, added-at = {2007-06-20T10:16:09.000+0200}, address = {Genova, Italy}, author = {Manini, N. and Caruso, F. and Santoro, G.E. and Tosatti, E. and Vanossi, A.}, biburl = {https://www.bibsonomy.org/bibtex/2506a5d09973330eda74e728e9666b7be/statphys23}, booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics}, editor = {Pietronero, Luciano and Loreto, Vittorio and Zapperi, Stefano}, interhash = {febea9eb9709cfe5b1a4aa5898bf6046}, intrahash = {506a5d09973330eda74e728e9666b7be}, keywords = {atomic dynamics friction hardness lubrication materials mechanical nanoscale nonlinear properties scale solitons statphys23 topic-3 tribology wear}, month = {9-13 July}, timestamp = {2007-06-20T10:16:29.000+0200}, title = {Static friction on the fly: velocity pinning transitions of lubricants in motion}, url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=776}, year = 2007 }