Superlubric-Pinned Transition in Sliding Incommensurate Colloidal Monolayers

  title={Superlubric-Pinned Transition in Sliding Incommensurate Colloidal Monolayers},
  author={Davide Mandelli and Andrea Vanossi and Michele Invernizzi and Stella Valentina Paronuzzi Ticco and Nicola Manini and Erio Tosatti},
  journal={arXiv: Mesoscale and Nanoscale Physics},
Two-dimensional (2D) crystalline colloidal monolayers sliding over a laser-induced optical lattice recently emerged as a new tool for the study of friction between ideal crystal surfaces. Here we focus in particular on static friction, the minimal sliding force necessary to depin one lattice from the other. If the colloid and the optical lattices are mutually commensurate, the colloid sliding is always pinned by static friction; but when they are incommensurate the presence or absence of… Expand

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