### 抜粋

We have experimentally and theoretically studied the interparticle force between two colloidal particles with different sizes accompanied by hyperbolic hedgehog defects in a nematic liquid crystal. The force f was directly measured using dual-beam optical tweezers and calculated theoretically from the equilibrium tensor field around the particles. The dependence of f on the center-to-center distance between particles of different sizes R is different from that for particles with the same size. The magnitude of f depends on the relative arrangement of the particles: f is larger when a defect between the particles belongs to the larger particle. From the theoretical calculation, the difference in f between the two arrangements, δf, monotonically increases with increasing size difference. The difference δf was experimentally and theoretically found to be proportional to R-4.6 at large R. The obtained exponent is comparable to the exponent of -5 predicted by electrostatic analogy.

元の言語 | 英語 |
---|---|

記事番号 | 010701 |

ジャーナル | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |

巻 | 81 |

発行部数 | 1 |

DOI | |

出版物ステータス | 出版済み - 1 7 2010 |

### All Science Journal Classification (ASJC) codes

- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics

## フィンガープリント Arrangement dependence of interparticle force in nematic colloids' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

## これを引用

*Physical Review E - Statistical, Nonlinear, and Soft Matter Physics*,

*81*(1), [010701]. https://doi.org/10.1103/PhysRevE.81.010701