Molecular simulation and theory of a liquid crystalline disclination core

被引:27
作者
Andrienko, D [1 ]
Allen, MP [1 ]
机构
[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England
来源
PHYSICAL REVIEW E | 2000年 / 61卷 / 01期
关键词
D O I
10.1103/PhysRevE.61.504
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Molecular simulations of a nematic liquid crystal confined Fn cylinder geometry with homeotropic anchoring have been carried out. The core structure of a disclination line defect of strength +1 has been examined, and comparison made with various theoretical treatments, which are presented in a unified way. It is found that excellent fits to the cylindrically symmetrized order tensor profiles may be obtained with appropriate parameter choices; notwithstanding this, on the time scales of the simulation, the cylindrical symmetry of the fore is broken and two defects of strength +1/2 may be resolved. PACS number(s): 61.30.Cz, 61.30.Jf, 61.20.Ja, 07.05.Tp.
引用
收藏
页码:504 / 510
页数:7
相关论文
共 28 条
  • [11] FINITE MOLECULAR ANCHORING IN THE ESCAPED-RADIAL NEMATIC CONFIGURATION - A H-2-NMR STUDY
    CRAWFORD, GP
    ALLENDER, DW
    DOANE, JW
    VILFAN, M
    VILFAN, I
    [J]. PHYSICAL REVIEW A, 1991, 44 (04) : 2570 - 2577
  • [12] SURFACE ELASTIC AND MOLECULAR-ANCHORING PROPERTIES OF NEMATIC LIQUID-CRYSTALS CONFINED TO CYLINDRICAL CAVITIES
    CRAWFORD, GP
    ALLENDER, DW
    DOANE, JW
    [J]. PHYSICAL REVIEW A, 1992, 45 (12): : 8693 - 8708
  • [13] DZUBIELLA J, UNPUB
  • [14] ON THE THEORY OF LIQUID CRYSTALS
    FRANK, FC
    [J]. DISCUSSIONS OF THE FARADAY SOCIETY, 1958, (25): : 19 - 28
  • [15] THE HARD ELLIPSOID-OF-REVOLUTION FLUID .1. MONTE-CARLO SIMULATIONS
    FRENKEL, D
    MULDER, BM
    [J]. MOLECULAR PHYSICS, 1985, 55 (05) : 1171 - 1192
  • [16] PHASE-DIAGRAM OF A SYSTEM OF HARD ELLIPSOIDS
    FRENKEL, D
    MULDER, BM
    MCTAGUE, JP
    [J]. PHYSICAL REVIEW LETTERS, 1984, 52 (04) : 287 - 290
  • [17] MONTE-CARLO SIMULATION OF A DISCLINATION CORE IN NEMATIC SOLUTIONS OF RODLIKE MOLECULES
    HUDSON, SD
    LARSON, RG
    [J]. PHYSICAL REVIEW LETTERS, 1993, 70 (19) : 2916 - 2919
  • [18] Kleman M, 1983, POINTS LINES WALLS L
  • [19] Disclination core structure and induced phase change in nematic liquid crystals
    Mottram, NJ
    Hogan, SJ
    [J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1997, 355 (1731): : 2045 - 2064
  • [20] Press W.H., 1992, NUMERICAL RECIPES FO