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@INPROCEEDINGS{Kang:1047641,
      author       = {Kang, Kyongok},
      title        = {{C}harged {R}od-{G}lasses in non-{E}quilibrium {S}hear
                      {F}low {R}esponse},
      reportid     = {FZJ-2025-04438},
      year         = {2025},
      abstract     = {The equilibrium phase behaviour [1-3] are presented for the
                      concentrated suspension of bacteriophage fd, DNA-viruses
                      charged DNA-viruses, at sufficiently low ionic strengths
                      (below 1 mM Tris/HCl buffer), which is a good model system
                      for highly charged colloidal rods, exhibiting the phase
                      transitions; from the nematic-to-chiral nematic and other
                      hierarchical chiral-mesophases (Xpattern and helical
                      domains) to the glass states, in an increase of the
                      rod-concentration [4-5]. In this talk, experiments on both
                      equilibrium and the field-induced phase transition, as well
                      as sheer response of the glass state in flow will be
                      discussed. The (structural) glass transition occurs well
                      within the full chiral-nematic state, where the particle
                      dynamics and the orientation texture dynamics are
                      simultaneously arrested, at the same concentration [3-5].
                      The glass is also found to exhibit several types of
                      non-uniform flow profiles, depending on the externally
                      applied shear rate: At low shear rates plug flow is observed
                      and at intermediate shear rates gradient-banded flow
                      profiles are found [4, 5]. At high shear rates the glass is
                      melted, leading to a linear flow profile. Finally, as one of
                      interesting findings for chiral-mesophases, is a
                      “chiral-glass”, driven by the replica symmetry breaking
                      (RSB), determined by both real- and Fourier-space [6], kept
                      between the two “replicas” of larger chiral-nematic
                      domain (at a lower concentration) and the
                      “helical-domains” (at a higher concentration) of charged
                      DNA-rods [7]. As will be shown, there is a subtle interplay
                      between the stress originating from inter-particle
                      interactions within the domains and the texture stress due
                      to inter-domain interactions.//References[1] K. Kang and J.
                      K. G. Dhont, Phys. Rev. Lett. 110, 015901, 2013.[2] K. Kang,
                      Soft Matter, 10, 3311-3324, 2014: Soft Matter 9, 4401,
                      2013.[3] K. Kang, Sci. Rep. 11: 3472, 2021.[4] K. Kang, J.
                      Phys. Commun, 5, 045011, 2021.[5] D. Parisi, D.
                      Vlassopoulos, H. Kriegs, J. K. G. Dhont, and K. Kang,
                      Journal of Rheology 66, 365, 2022: Phys. Rev. Fluids 2,
                      043301 (2017).[6] K. Kang, J. Phys. Commun, 5, 065001,
                      2021.[7] K. Kang, J. Phys. Commun, 6, 015001, 2022.},
      month         = {Sep},
      date          = {2025-09-29},
      organization  = {The 9th International Soft Matter
                       Conference, Chania, Crete (Greece), 29
                       Sep 2025 - 3 Oct 2025},
      subtyp        = {After Call},
      cin          = {IBI-4},
      cid          = {I:(DE-Juel1)IBI-4-20200312},
      pnm          = {5241 - Molecular Information Processing in Cellular Systems
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-5241},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1047641},
}