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Surface twist disclination in nematics on ferroelectric TGS

  • Published:
Czechoslovak Journal of Physics B Aims and scope

Conclusions

  1. 1)

    The domains of different contrast in NLC over the ferroelectric domains of TGS are encircled by the surface twist disclination lines with the strengthsσ 1=58/360 andσ 2=1/2-58/360.

  2. 2)

    During the phase transition of TGS from ferroelectric to paralelectric state the surface of TGS starts to be uniform and thus theσ 1-line disappears and theσ 2-line transforms to theπ-twist disclination line.

  3. 3)

    The value of the surface anchoring energy for both ferroelectric and paraelectric state of TGS can be estimated to be within the limits 10−6−7×10−7 J/m2.

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Authors and Affiliations

  1. Institute of Physics, Czechosl. Acad. Sci., Na Slovance 2, 180 40, Praha 8, Czechoslovakia

    L. Lejček

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  1. L. Lejček
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Lejček, L. Surface twist disclination in nematics on ferroelectric TGS. Czech J Phys 33, 447–454 (1983). https://doi.org/10.1007/BF01589877

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  • DOI: https://doi.org/10.1007/BF01589877

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