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@ARTICLE{Sivebaek:201805,
      author       = {Sivebaek, I. M. and Samoilov, V. N. and Persson, Bo},
      title        = {{E}ffective {V}iscosity of {C}onfined {H}ydrocarbons},
      journal      = {Physical review letters},
      volume       = {108},
      number       = {3},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-04099},
      pages        = {036102},
      year         = {2012},
      abstract     = {We present molecular dynamics friction calculations for
                      confined hydrocarbon films with molecular lengths from 20 to
                      1400 carbon atoms. We find that the logarithm of the
                      effective viscosity ηeff for nanometer-thin films depends
                      linearly on the logarithm of the shear rate:
                      logηeff=C−nlogγ˙, where n varies from 1
                      (solidlike friction) at very low temperatures to 0
                      (Newtonian liquid) at very high temperatures, following an
                      inverse sigmoidal curve. Only the shortest chain molecules
                      melt, whereas the longer ones only show a softening in the
                      studied temperature interval 0<T<900  K. The results are
                      important for the frictional properties of very thin
                      (nanometer) films and to estimate their thermal durability.},
      cin          = {IAS-1 / PGI-1},
      ddc          = {550},
      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:000299329100019},
      doi          = {10.1103/PhysRevLett.108.036102},
      url          = {https://juser.fz-juelich.de/record/201805},
}