Cell size dependence of orientational order of uniaxial liquid crystals in flat slit

Toshiki Mima, Tetsu Narumi, Shun Kameoka, Kenji Yasuoka

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In order to investigate the ordered structure of nematic liquid crystal molecules confined in a nanoslit, we carried out a classical molecular dynamics simulation of uniaxial prolate Gay-Berne particles in a flat, structureless slit at several temperatures. When the slit gap is so small that the system is not assumed as the bulk, particles in the slit possess orientationally ordered structures different from ones in the bulk. The weak spacial orientational correlation existed when the temperature corresponded to the isotropic phase in the bulk system. The first order isotropic-nematic phase transition was not clearly observed and the transitional phenomenon of the creation and annihilation of the uniaxial domains were observed. These results revealed that the ordered structure depends on the number of particles, in other words, cell size, and that the system with 100,000 or more particles gives reasonable results of an infinitely wide slit. The number of particles is converted into up to 220 particles of the length of the base.

Original languageEnglish
Pages (from-to)761-773
Number of pages13
JournalMolecular Simulation
Volume34
Issue number8
DOIs
Publication statusPublished - 2008 Jul

Fingerprint

Liquid Crystals
Cell Size
Liquid Crystal
Liquid crystals
slits
liquid crystals
Phosmet
Nematic liquid crystals
cells
Molecular dynamics
Phase transitions
Temperature
Molecules
Computer simulation
Nematic Liquid Crystal
Annihilation
Molecular Dynamics Simulation
Phase Transition
molecular dynamics
First-order

Keywords

  • Confined
  • Liquid crystal
  • Molecular simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Cell size dependence of orientational order of uniaxial liquid crystals in flat slit. / Mima, Toshiki; Narumi, Tetsu; Kameoka, Shun; Yasuoka, Kenji.

In: Molecular Simulation, Vol. 34, No. 8, 07.2008, p. 761-773.

Research output: Contribution to journalArticle

Mima, Toshiki ; Narumi, Tetsu ; Kameoka, Shun ; Yasuoka, Kenji. / Cell size dependence of orientational order of uniaxial liquid crystals in flat slit. In: Molecular Simulation. 2008 ; Vol. 34, No. 8. pp. 761-773.
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