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

Sunami, Kanta; Imamura, Koki; Ouchi, Tomohiro; Yoshida, Hiroyuki; Ozaki, Masanori

doi:info:doi/10.1103/PhysRevE.97.020701

このアイテムのアクセス数:27件（2021-05-11 12:54 集計）

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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
ISSN	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

著者版フラグ	publisher
NII資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
dcmi資源タイプ	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
citation_issn	24700053
citation_doi	info:doi/10.1103/PhysRevE.97.020701
citation_public_url	http://hdl.handle.net/11094/75689

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