2D07 液晶の弾性変形を媒介とした粒子間相互作用の数値計算(2004年日本液晶学会討論会)

概要

論文の詳細を見る
We study numerically the interaction between particles in a liquid crystal mediated by its elastic distortions. We employ the Landau-de Gennes continuum theory in terms of a second-order tensor order parameter Q_<ij> for the description of the orientational order of a liquid crystal. We use bispherical coordinates to describe the geometry of the system containing two spherical particles. When the two particles are accompanied by a hyperbolic hedgehog in a nematic liquid crystal, the particles feel a power-law long-range force until a short-range repulsion due to a defect between the particles becomes dominant. Just above the nematic-isotropic transition, a capillary bridge of a nematic phase can be formed, which results in a strong attractive force whose strength is almost independent of the inter-particle distance.
日本液晶学会の論文
2004-09-26