Predictions and observations of multiple slip modes in atomic-scale friction.
Using the quasistatic Tomlinson model as a simple representation of an atomic force microscope, conditions for transitions in atomic-scale friction behavior from smooth sliding to single slips and then multiple slip regimes are derived based on energy minimization. The calculations predict and give a general explanation for transitions between different stick-slip regimes in the limit of low damping. The predictions are consistent with experimental observations of these transitions.
Medyanik
Sergey N
SN
Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, USA.
Liu
Wing Kam
WK
Sung
In-Ha
IH
Carpick
Robert W
RW