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@ARTICLE{Lenstra:27238,
      author       = {Lenstra, T. and Dhont, J. K. G.},
      title        = {{F}low dichroism in critical colloidal fluids},
      journal      = {Physical review / E},
      volume       = {63},
      issn         = {1539-3755},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-27238},
      pages        = {61401 - 61412},
      year         = {2001},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Due to long-range correlations and slow dynamics of
                      concentration fluctuations in the vicinity of the gas-liquid
                      critical point, shear flow is very effective in distorting
                      the microstructure of near-critical fluids. The anisotropic
                      nature of the shear-field renders the microstructure highly
                      anisotropic, leading to dichroism. Experiments on the
                      dichroic behavior can thus be used to test theoretical
                      predictions on microstructural order under shear flow
                      conditions. We performed both static and dynamic dichroism
                      and turbidity measurements on a colloid-polymer mixture,
                      existing of silica spheres (radius 51 nm) and
                      polydimethylsiloxane polymer (molar weight 204 kg/mol).
                      Sufficiently far away from the critical point, in the
                      mean-field region, the experimental data are in good
                      agreement with theory. Very close to the critical point,
                      beyond mean field, for which no theory exists yet, an
                      unexpected decrease of dichroism on approach of the critical
                      point is observed. Moreover, we do not observe critical
                      slowing down of shear-induced dichroism, right up to the
                      critical point, in contrast to the turbidity.},
      keywords     = {J (WoSType)},
      cin          = {IFF-WM},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB36},
      pnm          = {Polymere, Membranen und komplexe Flüssigkeiten},
      pid          = {G:(DE-Juel1)FUEK53},
      shelfmark    = {Physics, Fluids $\&$ Plasmas / Physics, Mathematical},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000169285000042},
      url          = {https://juser.fz-juelich.de/record/27238},
}