Static friction scaling of physisorbed islands: the key is in the edge
Nicola Varini, Andrea Vanossi, Roberto Guerra, Davide Mandelli,, Rosario Capozza, Erio Tosatti
TL;DR
This paper investigates how the edge of nanosized rare gas islands influences static friction on incommensurate surfaces, revealing key scaling behaviors through simulations.
Contribution
It introduces a model emphasizing the edge's role in static friction scaling for physisorbed islands, advancing understanding of nanoscale friction mechanisms.
Findings
Edge contribution dominates static friction scaling
Simulation results highlight the importance of island size and shape
Edge effects are crucial for understanding nanoscale friction
Abstract
The static friction preventing the free sliding of nanosized rare gas solid islands physisorbed on incommensurate crystalline surfaces is not completely understood. Simulations modeled on Kr/Pb(111) highlights the importance and the scaling behavior of the island's edge contribution to static friction.
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