Please use this identifier to cite or link to this item: http://dx.doi.org/10.14279/depositonce-9787
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Main Title: Defect topologies in chiral liquid crystals confined to mesoscopic channels
Author(s): Schlotthauer, Sergej
Skutnik, Robert A.
Stieger, Tillmann
Schoen, Martin
Type: Article
Language Code: en
Abstract: We present Monte Carlo simulations in the grand canonical and canonical ensembles of a chiral liquid crystal confined to mesochannels of variable sizes and geometries. The mesochannels are taken to be quasi-infinite in one dimension but finite in the two other directions. Under thermodynamic conditions chosen and for a selected value of the chirality coupling constant, the bulk liquid crystal exhibits structural characteristics of a blue phase II. This is established through the tetrahedral symmetry of disclination lines and the characteristic simple-cubic arrangement of double-twist helices formed by the liquid-crystal molecules along all three axes of a Cartesian coordinate system. If the blue phase II is then exposed to confinement, the interplay between its helical structure, various anchoring conditions at the walls of the mesochannels, and the shape of the mesochannels gives rise to a broad variety of novel, qualitative disclination-line structures that are reported here for the first time.
URI: https://depositonce.tu-berlin.de/handle/11303/10894
http://dx.doi.org/10.14279/depositonce-9787
Issue Date: 19-May-2015
Date Available: 6-Mar-2020
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Subject(s): monte carlo simulation
chiral liquid crystal
mesochannels
blue phases
structure
Sponsor/Funder: DFG, 65143814, GRK 1524: Self-Assembled Soft-Matter Nanostructures at Interfaces
License: http://rightsstatements.org/vocab/InC/1.0/
Journal Title: The Journal of Chemical Physics
Publisher: American Institute of Physics (AIP)
Publisher Place: Melville, NY
Volume: 142
Issue: 19
Article Number: 194704
Publisher DOI: 10.1063/1.4920979
EISSN: 1089-7690
ISSN: 0021-9606
Notes: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in J. Chem. Phys. 142, 194704 (2015) and may be found at https://doi.org/10.1063/1.4920979.
Appears in Collections:FG Theoretische Chemie » Publications

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