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@ARTICLE{Khomenko:201500,
      author       = {Khomenko, A. V. and Prodanov, N. V. and Persson, Bo},
      title        = {{A}tomistic modelling of friction of {C}u and {A}u
                      nanoparticles adsorbed on graphene},
      journal      = {Condensed matter physics},
      volume       = {16},
      number       = {3},
      issn         = {1607-324X},
      address      = {Lviv},
      publisher    = {Inst.},
      reportid     = {FZJ-2015-03795},
      pages        = {33401},
      year         = {2013},
      abstract     = {We present classical molecular dynamics calculations of the
                      behavior of copper and gold nanoparticles on a graphene
                      sheet, sheared with a constant applied force Fa. The force
                      Fs acting on the particle from the substrate depends on the
                      material of the nanoparticles (Au or Cu), and exhibits a
                      sawtooth dependency on time, which we attribute to local
                      commensurability between the metal nanoparticle surface
                      atomic positions with the graphene lattice. The
                      time-averaged value of Fs (the friction force) acting on Au
                      nanoparticles increases linearly with the contact area,
                      having slopes close to the experimentally observable ones. A
                      qualitative model is proposed to explain the observed
                      results.},
      cin          = {IAS-1 / PGI-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106},
      pnm          = {424 - Exploratory materials and phenomena (POF2-424)},
      pid          = {G:(DE-HGF)POF2-424},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000325304200010},
      doi          = {10.5488/CMP.16.33401},
      url          = {https://juser.fz-juelich.de/record/201500},
}