Static and dynamic friction in sliding colloidal monolayers (Articolo in rivista)

Type
Label
  • Static and dynamic friction in sliding colloidal monolayers (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1073/pnas.1213930109 (literal)
Alternative label
  • Vanossi, Andrea; Manini, Nicola; Tosatti, Erio (2012)
    Static and dynamic friction in sliding colloidal monolayers
    in Proceedings of the National Academy of Sciences of the United States of America
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Vanossi, Andrea; Manini, Nicola; Tosatti, Erio (literal)
Pagina inizio
  • 16429 (literal)
Pagina fine
  • 16433 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 109 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 41 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Consiglio Nazl Ric Ist Officina Mat CNR IOM; International School for Advanced Studies; University of Milan; Abdus Salam International Centre for Theoretical Physics (literal)
Titolo
  • Static and dynamic friction in sliding colloidal monolayers (literal)
Abstract
  • In a pioneer experiment, Bohlein et al. realized the controlled sliding of two-dimensional colloidal crystals over laser-generated periodic or quasi-periodic potentials. Here we present realistic simulations and arguments that besides reproducing the main experimentally observed features give a first theoretical demonstration of the potential impact of colloid sliding in nanotribology. The free motion of solitons and antisolitons in the sliding of hard incommensurate crystals is contrasted with the soliton-antisoliton pair nucleation at the large static friction threshold F-s when the two lattices are commensurate and pinned. The frictional work directly extracted from particles' velocities can be analyzed as a function of classic tribological parameters, including speed, spacing, and amplitude of the periodic potential (representing, respectively, the mismatch of the sliding interface and the corrugation, or \"load\"). These and other features suggestive of further experiments and insights promote colloid sliding to a unique friction study instrument. (literal)
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