Numerical Study of a Disclination Loop in a Nematic Liquid Crystal Droplet

Masaki Kanke, Kazuo Sasaki

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

By extending the theory of Mori and Nakanishi [J. Phys. Soc. Jpn. 57 (1988) 1281], we study a disclination loop of strength 1/2 in a spherical droplet of a nematic liquid crystal. The director field is obtained by numerically solving the Euler-Lagrange equation for a given value of loop radius a, and the dependence of the free energy on a is investigated to obtain the equilibrium radius a*. We find that a* increases with droplet radius towards a limiting value, that depends on the choice of disclinaiton core energy. The present results are compared with that in earlier works based on a different theory.

Original languageEnglish
Article number034601
Journaljournal of the physical society of japan
Volume82
Issue number3
DOIs
Publication statusPublished - 2013 Mar 1

Keywords

  • Disclination
  • Disclination-loop
  • Hedgehog
  • Nematic liquid crystal droplet

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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