Light scattering study of a twist grain boundary liquid crystal.

Authors:
Strahinja Stojadinovic, Ph.D.
Strahinja Stojadinovic, Ph.D.
UT Southwestern Medical Center
Associate Professor
Medical Physics
Dallas, TX | United States

Phys Rev Lett 2003 Jan 23;90(3):035503. Epub 2003 Jan 23.

Department of Physics, Kent State University, Kent, Ohio 44242, USA.

Dynamic light scattering is used to probe the fluctuation modes of a liquid crystal exhibiting twist grain boundary (TGB) structure. At the chiral nematic to proposed "chiral line liquid" phase transition, anomalous temperature dependence in the fluctuation spectrum and an instability in the helicoidal director structure signify developing TGB order. At lower temperatures, the behavior of the smectic layer-director fluctuations ("soft" mode) indicates that the previously identified commensurate TGB(A) phase may in fact be a TGB(C) phase with an unusually small tilt angle.

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http://dx.doi.org/10.1103/PhysRevLett.90.035503DOI Listing
January 2003
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References

(Supplied by CrossRef)

J. Goodby et al.
Nature (London) 1988

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