Monday, January 05, 2015

Static friction scaling of physisorbed islands: the key is in the edge




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR06521B, Paper

Nicola Varini, Andrea Vanossi, Roberto Guerra, Davide Mandelli, Rosario Capozza, Erio Tosatti

The free "superlubric" sliding of a physisorbed rare gas island is paradoxically hindered even on a perfect incommensurate crystalline surface by portions of the island's own edges. As a consequence, the island's static friction scales for growing area with a lower power than 1/2.

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