BROWSE

Related Scientist

Researcher

김성조
첨단연성물질 연구단
more info

Effects of chiral dopants on double-twist configurations of lyotropic chromonic liquid crystals in a cylindrical cavity

Cited 0 time in webofscience Cited 0 time in scopus
17 Viewed 3 Downloaded
Title
Effects of chiral dopants on double-twist configurations of lyotropic chromonic liquid crystals in a cylindrical cavity
Author(s)
Eun J.; Sung-Jo Kim; Joonwoo Jeong
Publication Date
2019-07
Journal
PHYSICAL REVIEW E, v.100, no.1, pp.012702 - 012709
Publisher
AMERICAN PHYSICAL SOCIETY
Abstract
© 2019 American Physical Society.We investigate how chiral dopants affect the chiral symmetry breaking of lyotropic chromonic liquid crystals (LCLCs) focusing on the double-twist (DT) director configurations in a cylindrical capillary. LCLCs of unusual elastic properties tend to exhibit chiral director configurations under confinement despite the absence of intrinsic chirality. The DT director configuration in a cylindrical cavity with a degenerate planar anchoring, resulting from the large saddle-splay-to-twist elastic modulus ratio, is a representative example. Here we start by reexamining the DT configuration of nematic disodium cromoglycate in a cylindrical capillary and estimate the ratio of saddle splay to bend modulus K24/K3=0.5±0.1. Additionally, we study the DT configurations of the chiral nematic LCLCs with chiral dopants. The DT configuration becomes homochiral when the dopant concentration surpasses the critical concentration. We characterize these chiral DT configurations and provide a theoretical model on their energetics. Finally, we observe how the enantiomeric excess of chiral dopants determines the director configuration when dopants of two different handednesses are mixed
URI
https://pr.ibs.re.kr/handle/8788114/6909
ISSN
2470-0045
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > Journal Papers (저널논문)
Files in This Item:
Jeong, Effects of chiral dopants on double-twist configurations of lyotropic chromonic liquid crystals in a cylindrical cavity.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse