Shape control of surface-stabilized disclination loops in nematic liquid crystals

Sunami, Kanta; Imamura, Koki; Ouchi, Tomohiro et al.

Physical Review E, 2018, 97(2), 020701-020701

Number of Access:547（2025-09-02 10:21 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/75689

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Title
Shape control of surface-stabilized disclination loops in nematic liquid crystals
Creator
CreatorName
Sunami, Kanta
CreatorName
Imamura, Koki
CreatorName
Ouchi, Tomohiro
NRID
1000080550045 1000080550045
researchmap permalink
hiroyukiyoshida hiroyukiyoshida
Scopus Author ID
55628543086 55628543086
CreatorName
Yoshida, Hiroyuki
NRID
1000050204186 1000050204186
ORCID
0000-0002-9556-4225 0000-0002-9556-4225
researchmap permalink
read0014092 read0014092
Scopus Author ID
55490143900 55490143900
CreatorName
Ozaki, Masanori
Abstract
Recent studies on topological defects in conventional and active nematic liquid crystals have revealed their potential as sources of advanced functionality whereby the collective behavior of the constituent molecules or cells is controlled. On the other hand, the fact that they have high energies and are metastable makes their shape control a nontrivial issue. Here, we demonstrate stabilization of arbitrary-shaped closed disclination loops with 1/2 strength floating in the bulk by designing the twist angle distribution in a liquid crystal cell. Continuous variation of the twist angle from below to above |π/2| allows us to unambiguously position reverse twist disclinations at will. We also analyze the elastic free energy and uncover the relationship between the twist angle pattern and shrink rate of the surface-stabilized disclination loop.
Publisher
American Physical Society
Source Title
Physical Review E
Volume (Issue)
97(2)
Page
020701-020701
Date of Issued
2018-02-08
Language
English
Handle URL
https://hdl.handle.net/11094/75689
PISSN
24700045
eISSN
24700053
NCID
AA11558033
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1103/PhysRevE.97.020701
Access Rights
open access
CopyRight
Copyright (2018) by the American Physical Society
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article