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@INPROCEEDINGS{Dhont:1009601,
      author       = {Dhont, Jan K. G. and Kang, Kyongok},
      title        = {{E}lectric-field induced phases/states in suspensions of
                      highly charged rod-like colloids},
      school       = {HHU},
      reportid     = {FZJ-2023-02916},
      year         = {2023},
      abstract     = {After a short introduction to colloids and liquid crystals,
                      I will discuss the response of concentrated suspensions of
                      highly charged, very long and thin, rod-like colloids to
                      external electric fields. Fd-virus particles are used as a
                      model system for such rod-like colloids. These virus
                      particles consist of a dsDNA strand of a length of 880 nm,
                      which is covered by 2700 coat proteins, leading a core
                      thickness of 7 nm. The coat proteins give rise a very large
                      surface charge density of the fd-virus particles, which
                      results in a large number of condensed ions close to the
                      surface of the particles. Depending on the amplitude and
                      frequency of the external field, transitions from a nematic
                      to chiral nematic, and from a chiral nematic to a
                      homeotropic phase are found. In addition, a field-induced
                      dynamical state can be induced, where nematic domains
                      persistently melt and reform. The time scale on which
                      melting and reforming of nematic domains occurs, and the
                      size of the domains, both diverge at what could be
                      identified as a “non-equilibrium critical point”. An
                      explanation of these phenomena is presented, both on an
                      intuitive level and based on appropriate equations of motion
                      for the orientational order parameter, where the
                      field-induced dissociation/associated of condensed ions
                      plays an important role.},
      month         = {May},
      date          = {2023-05-25},
      organization  = {Honorary doctorate by the Faculty of
                       Science at Lund University, Lund
                       (Sweden), 25 May 2023 - 25 May 2023},
      subtyp        = {Invited},
      cin          = {IBI-4},
      cid          = {I:(DE-Juel1)IBI-4-20200312},
      pnm          = {5243 - Information Processing in Distributed Systems
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-5243},
      typ          = {PUB:(DE-HGF)31},
      url          = {https://juser.fz-juelich.de/record/1009601},
}