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PhysRevE_97_02_020701
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論文情報
タイトル
Shape control of surface-stabilized disclination loops in nematic liquid crystals
著者
Sunami, Kanta
Sunami, Kanta
Imamura, Koki
Imamura, Koki
Ouchi, Tomohiro
Ouchi, Tomohiro
Yoshida, Hiroyuki
Yoshida, Hiroyuki
Ozaki, Masanori
Ozaki, Masanori
抄録
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.
公開者
American Physical Society
掲載誌名
Physical Review E
巻
97
号
2
開始ページ
020701
終了ページ
020701
刊行年月
2018-02-08
ISSN
24700045
24700053
NCID
AA11558033
DOI (出版社版)
info:doi/10.1103/PhysRevE.97.020701
URL
http://hdl.handle.net/11094/75689
権利情報
Copyright (2018) by the American Physical Society
言語
英語
カテゴリ
学術雑誌論文 Journal Article
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text
DCTERMS.bibliographicCitation
Proceedings of SPIE - the International Society for Optical Engineering
DC.title
Shape control of surface-stabilized disclination loops in nematic liquid crystals
DC.creator
Sunami, Kanta
Imamura, Koki
Ouchi, Tomohiro
Yoshida, Hiroyuki
Ozaki, Masanori
DC.publisher
American Physical Society
DC.language" scheme="DCTERMS.RFC1766
英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF
2018-02-08
DC.identifier
info:doi/10.1103/PhysRevE.97.020701
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/75689
DCTERMS.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.
DC.rights
Copyright (2018) by the American Physical Society
citation_title
Shape control of surface-stabilized disclination loops in nematic liquid crystals
citation_author
Sunami, Kanta
Imamura, Koki
Ouchi, Tomohiro
Yoshida, Hiroyuki
Ozaki, Masanori
citation_publisher
American Physical Society
citation_language
英語
citation_date
2018-02-08
citation_journal_title
Physical Review E
citation_volume
97
citation_issue
2
citation_firstpage
020701
citation_lastpage
020701
citation_issn
24700045
24700053
citation_doi
info:doi/10.1103/PhysRevE.97.020701
citation_public_url
http://hdl.handle.net/11094/75689