New structure induced by elastic anisotropy in cylindrical nematic liquid crystal

Authors

  • Zhang Qian Hebei University of Technology, Tianjin 300401, China;
  • Zhou Xuan Hebei University of Technology, Tianjin 300401, China;
  • Zhang Zhidong Hebei University of Technology, Tianjin 300401, China;

DOI:

https://doi.org/10.24297/jap.v13i2.5874

Keywords:

Landau-de Gennes theory, escape radial configurations, elastic anisotropy, defect

Abstract

Basing on Landaude Gennes theory, this study investigated the chiral configurations of nematic liquid crystals confined to cylindrical capillaries with homeotropic anchoring on the cylinder walls. When the elastic anisotropy (L2/L1) is large enough, a new structure results from the convergence of two opposite escape directions of the heterochiral twist and escape radial (TER) configurations. The new defect presents when L2/L17 and disappears when L2/L1<7. The new structure possesses a heterochiral hyperbolic defect at the center and two homochiral radial defects on both sides. The two radial defects show different chiralities.

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Author Biographies

Zhang Qian, Hebei University of Technology, Tianjin 300401, China;

Department of Physics

Zhou Xuan, Hebei University of Technology, Tianjin 300401, China;

Department of Physics

Zhang Zhidong, Hebei University of Technology, Tianjin 300401, China;

Department of Physics

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Published

2017-03-16

How to Cite

Qian, Z., Xuan, Z., & Zhidong, Z. (2017). New structure induced by elastic anisotropy in cylindrical nematic liquid crystal. JOURNAL OF ADVANCES IN PHYSICS, 13(2), 4705–4717. https://doi.org/10.24297/jap.v13i2.5874

Issue

Vol. 13 No. 2

Section

Articles

License

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