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).
%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
}