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| Journal Article | FZJ-2021-02529 |
2021
IOP Publishing Ltd.
Philadelphia, PA
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Please use a persistent id in citations: http://hdl.handle.net/2128/27918 doi:10.1088/2399-6528/ac050b
Abstract: Recently, the collective phase behaviors of charged DNA-viruses (rods) are explored in various low ionic strengths, where much slowing down relaxations are observed in equilibrium. These phases are distinguished by crossing the critical ionic strength, where the salt-dependent effective microscopic dynamics are important with non-monotonic multi-phase boundaries. This is also interested in terms of phase transition and replica symmetry breaking (RSB), realized by the divergence of relaxation time and the exponent power of correlation lengths in dynamic disorderorder transitions. RSB occurs as the result of many-body interactions of randomized orientations. Here, in this paper, one of the chiral mesophases, the X-pattern is highlighted for its long-time metastable state consisting of cavity loops bounded within the planar nematic, as a new type of a glass, noted as a chiral glass. The chiral glass is discussed in terms of the divergences for relaxations in the characteristic time as well the inverse of an optical pitch length, which are analyzed in the long-time-lapsed orientation textures via image-time correlations. The outcome highlights interesting aspects of charge effect in the 'twist' elasticity energy for optimizing the long-ranged repulsive electrostatic interactions among charged DNA rods.
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