Cascade “Melting” of a Linear Disclination in Chiral Nematic Droplets
- Authors: Skaldin O.A.1, Klebanov I.I.2,3, Timirov Y.I.1, Basyrova E.R.1, Delev V.A.1
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Affiliations:
- Institute of Molecule and Crystal Physics, Ufa Federal Research Center
- South Ural State Humanitarian Pedagogical University
- South Ural State University (National Research University)
- Issue: Vol 107, No 11 (2018)
- Pages: 695-698
- Section: Condensed Matter
- URL: https://journals.rcsi.science/0021-3640/article/view/161110
- DOI: https://doi.org/10.1134/S0021364018110139
- ID: 161110
Cite item
Abstract
A new structure of the elastic field of a chiral nematic liquid crystal in a cylindrical capillary with a singularity on the axis of the capillary in the form of a “melted” helical disclination has been obtained experimentally. It has been shown theoretically that the number of cylindrical surfaces, cascades at which a jump of the direction of the director orientation field n by π occurs, can be arbitrary. The particular number of cascades depends on the radius R of the cylinder and boundary conditions. An expression for the free energy of the elastic field has been obtained in the one-constant approximation of the continuum theory of liquid crystals.
About the authors
O. A. Skaldin
Institute of Molecule and Crystal Physics, Ufa Federal Research Center
Email: timirov@anrb.ru
Russian Federation, Ufa, 450075
I. I. Klebanov
South Ural State Humanitarian Pedagogical University; South Ural State University (National Research University)
Email: timirov@anrb.ru
Russian Federation, Chelyabinsk, 454080; Chelyabinsk, 454080
Yu. I. Timirov
Institute of Molecule and Crystal Physics, Ufa Federal Research Center
Author for correspondence.
Email: timirov@anrb.ru
Russian Federation, Ufa, 450075
E. R. Basyrova
Institute of Molecule and Crystal Physics, Ufa Federal Research Center
Email: timirov@anrb.ru
Russian Federation, Ufa, 450075
V. A. Delev
Institute of Molecule and Crystal Physics, Ufa Federal Research Center
Email: timirov@anrb.ru
Russian Federation, Ufa, 450075
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