2006年9月
Colloidal aggregation in a nematic liquid crystal: Topological arrest of particles by a single-stroke disclination line
PHYSICAL REVIEW LETTERS
- ,
- 巻
- 97
- 号
- 12
- 開始ページ
- 127801
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.97.127801
- 出版者・発行元
- AMERICAN PHYSICAL SOC
We numerically study many-body interactions among colloidal particles suspended in a nematic liquid crystal, using a fluid particle dynamics method, which properly incorporates dynamical coupling among particles, nematic orientation, and flow field. Based on simulation results, we propose a new type of interparticle interaction in addition to well-known quadrupolar interaction for particles accompanying Saturn-ring defects. This interaction is mediated by the defect of the nematic phase: upon nematic ordering, a closed disclination loop binds more than two particles to form a sheetlike dynamically arrested structure. The interaction depends upon the topology of a disclination loop binding particles, which is determined by aggregation history.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevLett.97.127801
- ISSN : 0031-9007
- Web of Science ID : WOS:000240680400059