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Influence of substrate potential shape on the dynamics of a sliding lubricant chain
Rosalie Laure Woulaché, Andrea Vanossi, Nicola Manini
We investigate the frictional sliding of an incommensurate chain of interacting particles confined in between two nonlinear on-site substrate potential profiles in relative motion.…
Stick-Slip Nanofriction in Trapped Cold Ion Chains
Davide Mandelli, Andrea Vanossi, Erio Tosatti
Stick-slip -- the sequence of mechanical instabilities through which a slider advances on a solid substrate -- is pervasive throughout sliding friction, from nano to geological sca…
High-pressure lubricity at the meso- and nanoscale
A. Vanossi, A. Benassi, N. Varini +1
The increase of sliding friction upon increasing load is a classic in the macroscopic world. Here we discuss the possibility that friction rise might sometimes turn into a drop whe…