Orientational structures in cholesteric droplets with homeotropic surface anchoring

Mikhail N. Krakhalev; Vladimir Yu Rudyak; Oxana O. Prishchepa; Anna P. Gardymova; Alexander V. Emelyanenko; Jui Hsiang Liu; Victor Ya Zyryanov

doi:10.1039/c9sm00384c

Orientational structures in cholesteric droplets with homeotropic surface anchoring

Mikhail N. Krakhalev, Vladimir Yu Rudyak^*, Oxana O. Prishchepa, Anna P. Gardymova, Alexander V. Emelyanenko, Jui Hsiang Liu, Victor Ya Zyryanov

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

The dependency of orientational structures in cholesteric droplets with homeotropic surface anchoring on the helicity parameter has been studied by experiment and simulations. We have observed a sequence of structures, in which the director configurations and topological defects were identified by comparison of polarized microscopy pictures with simulated textures. A toron-like and low-symmetry intermediate layer-like structures have been revealed and studied in detail. The ranges of stability of the observed structures have been summarized in a general diagram and explained by the helicity parameter dependence of the free energy terms.

Original language	English
Pages (from-to)	5554-5561
Number of pages	8
Journal	Soft Matter
Volume	15
Issue number	28
DOIs	https://doi.org/10.1039/c9sm00384c
State	Published - 2019
Externally published	Yes

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title = "Orientational structures in cholesteric droplets with homeotropic surface anchoring",

abstract = "The dependency of orientational structures in cholesteric droplets with homeotropic surface anchoring on the helicity parameter has been studied by experiment and simulations. We have observed a sequence of structures, in which the director configurations and topological defects were identified by comparison of polarized microscopy pictures with simulated textures. A toron-like and low-symmetry intermediate layer-like structures have been revealed and studied in detail. The ranges of stability of the observed structures have been summarized in a general diagram and explained by the helicity parameter dependence of the free energy terms.",

author = "Krakhalev, {Mikhail N.} and Rudyak, {Vladimir Yu} and Prishchepa, {Oxana O.} and Gardymova, {Anna P.} and Emelyanenko, {Alexander V.} and Liu, {Jui Hsiang} and Zyryanov, {Victor Ya}",

note = "Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2019",

doi = "10.1039/c9sm00384c",

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AU - Krakhalev, Mikhail N.

AU - Rudyak, Vladimir Yu

AU - Prishchepa, Oxana O.

AU - Gardymova, Anna P.

AU - Emelyanenko, Alexander V.

AU - Liu, Jui Hsiang

AU - Zyryanov, Victor Ya

PY - 2019

Y1 - 2019

N2 - The dependency of orientational structures in cholesteric droplets with homeotropic surface anchoring on the helicity parameter has been studied by experiment and simulations. We have observed a sequence of structures, in which the director configurations and topological defects were identified by comparison of polarized microscopy pictures with simulated textures. A toron-like and low-symmetry intermediate layer-like structures have been revealed and studied in detail. The ranges of stability of the observed structures have been summarized in a general diagram and explained by the helicity parameter dependence of the free energy terms.

AB - The dependency of orientational structures in cholesteric droplets with homeotropic surface anchoring on the helicity parameter has been studied by experiment and simulations. We have observed a sequence of structures, in which the director configurations and topological defects were identified by comparison of polarized microscopy pictures with simulated textures. A toron-like and low-symmetry intermediate layer-like structures have been revealed and studied in detail. The ranges of stability of the observed structures have been summarized in a general diagram and explained by the helicity parameter dependence of the free energy terms.

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VL - 15

SP - 5554

EP - 5561

JO - Soft Matter

JF - Soft Matter

IS - 28

ER -

Orientational structures in cholesteric droplets with homeotropic surface anchoring

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