Direct measurement of interaction between colloidal particles in nematic liquid crystal

Kenji Takahashi, Yoshihiko Fujiwara, Masatoshi Ichikawa, Yasuyuki Kimura

Research output: Contribution to journalArticle

Abstract

Interparticle force F between two colloidal particles accompanied by hyperbolic hedgehog defects has been studied in nematic liquid crystal by two methods. We have directly measured F as a function of interparticle distance R in the case of two "dipoles" composed of a particle and an accompanied defect aligning parallel to the far-field director. We have confirmed the theoretical prediction that F is proportional to R-4 at longer distance but the magnitude of F is different in two methods. We have also observed that repulsive component emerges at shorter distance.

Original languageEnglish
Pages (from-to)183-192
Number of pages10
JournalMolecular Crystals and Liquid Crystals
Volume475
Issue number1
DOIs
Publication statusPublished - Jan 1 2007

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Nematic liquid crystals
liquid crystals
Defects
defects
interactions
far fields
dipoles
predictions

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Direct measurement of interaction between colloidal particles in nematic liquid crystal. / Takahashi, Kenji; Fujiwara, Yoshihiko; Ichikawa, Masatoshi; Kimura, Yasuyuki.

In: Molecular Crystals and Liquid Crystals, Vol. 475, No. 1, 01.01.2007, p. 183-192.

Research output: Contribution to journalArticle

Takahashi, Kenji ; Fujiwara, Yoshihiko ; Ichikawa, Masatoshi ; Kimura, Yasuyuki. / Direct measurement of interaction between colloidal particles in nematic liquid crystal. In: Molecular Crystals and Liquid Crystals. 2007 ; Vol. 475, No. 1. pp. 183-192.
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