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DOI | 10.1038/s41467-019-11377-5 |
Artificial web of disclination lines in nematic liquid crystals | |
Wang, Mengfei; Li, Yannian; Yokoyama, Hiroshi | |
2019-08-08 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Disclinations are topological singularities of molecular arrangement in liquid crystals, which typically occur when the average orientation of molecules makes a pi rotation along a fictitious closed loop taken inside the liquid crystal. Depending on the sense of molecular rotation, the disclination lines are either of 1/2 or -1/2 strength. When two disclination lines with the opposite strength meet, they are annihilated without trace. It is hence generally considered difficult in the nematic phase to stabilize a condensed array of free-standing disclination lines without the aid of topological objects like colloidal inclusions. Here we show that a freestanding web of 1/2-strength twist disclination lines can be stably formed in thin liquid crystal cells by means of a judicious combination of orientationally patterned confining surfaces fabricated by the micropatterned photoalignment technique. Theoretical model indicates that disclination lines are held apart at the intersection by a repulsive force generated by the Frank elasticity. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000408695100005 |
WOS关键词 | TOPOLOGICAL DEFECTS ; DYNAMICS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204488 |
专题 | 资源环境科学 |
作者单位 | Kent State Univ, Inst Liquid Crystal, 1425 Lefton Esplanade, Kent, OH 44242 USA |
推荐引用方式 GB/T 7714 | Wang, Mengfei,Li, Yannian,Yokoyama, Hiroshi. Artificial web of disclination lines in nematic liquid crystals[J]. NATURE COMMUNICATIONS,2019,8. |
APA | Wang, Mengfei,Li, Yannian,&Yokoyama, Hiroshi.(2019).Artificial web of disclination lines in nematic liquid crystals.NATURE COMMUNICATIONS,8. |
MLA | Wang, Mengfei,et al."Artificial web of disclination lines in nematic liquid crystals".NATURE COMMUNICATIONS 8(2019). |
条目包含的文件 | 条目无相关文件。 |
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