Spontaneous chiral symmetry breaking in liquid crystals

Motivated by new experimental observations we generalize the Landau-like approach to include the direct phase transition between isotropic liquid ( I) and heliconical nematic liquid crystal ( NTB) structure. We show that depending on the Landau expansion coefficients, our model allows either direct...

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Опубліковано в: :Физика низких температур
Дата:2017
Автор: Kats, E.I.
Формат: Стаття
Мова:Англійська
Опубліковано: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2017
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Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/129347
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Spontaneous chiral symmetry breaking in liquid crystals / E.I. Kats // Физика низких температур. — 2016. — Т. 43, № 1. — С. 7-10. — Бібліогр.: 27 назв. — англ.

Репозитарії

Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Kats, E.I.
author_facet Kats, E.I.
citation_txt Spontaneous chiral symmetry breaking in liquid crystals / E.I. Kats // Физика низких температур. — 2016. — Т. 43, № 1. — С. 7-10. — Бібліогр.: 27 назв. — англ.
collection DSpace DC
container_title Физика низких температур
description Motivated by new experimental observations we generalize the Landau-like approach to include the direct phase transition between isotropic liquid ( I) and heliconical nematic liquid crystal ( NTB) structure. We show that depending on the Landau expansion coefficients, our model allows either direct I–NTB transition, or the sequence of the phases I–N–NTB with the classical nematic liquid crystal ( N) sandwiched between the isotropic liquid and heliconical nematic liquid crystal. Which of these two situations is realized depends on how strong is the first order phase transition from the isotropic liquid. If it is strong enough the system undergoes I–N–NTB sequence, and for the very weak first order phase transition I–NTB transformation occurs. Furthermore in the latter case the NTB structure can be biaxial heliconical nematic liquid crystal.
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last_indexed 2025-12-07T17:25:01Z
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publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
record_format dspace
spelling Kats, E.I.
2018-01-19T13:48:39Z
2018-01-19T13:48:39Z
2017
Spontaneous chiral symmetry breaking in liquid crystals / E.I. Kats // Физика низких температур. — 2016. — Т. 43, № 1. — С. 7-10. — Бібліогр.: 27 назв. — англ.
0132-6414
ACS: 61.30.Cz, 61.30.Gd, 84.37.+q,
https://nasplib.isofts.kiev.ua/handle/123456789/129347
Motivated by new experimental observations we generalize the Landau-like approach to include the direct phase transition between isotropic liquid ( I) and heliconical nematic liquid crystal ( NTB) structure. We show that depending on the Landau expansion coefficients, our model allows either direct I–NTB transition, or the sequence of the phases I–N–NTB with the classical nematic liquid crystal ( N) sandwiched between the isotropic liquid and heliconical nematic liquid crystal. Which of these two situations is realized depends on how strong is the first order phase transition from the isotropic liquid. If it is strong enough the system undergoes I–N–NTB sequence, and for the very weak first order phase transition I–NTB transformation occurs. Furthermore in the latter case the NTB structure can be biaxial heliconical nematic liquid crystal.
This work was funded by Russian Science Foundation
 (grant 14-12-00475). I acknowledge stimulating discussions
 with V.V. Lebedev who inspired this work.
en
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
Физика низких температур
К 100-летию со дня рождения И.М. Лифшица
Spontaneous chiral symmetry breaking in liquid crystals
Article
published earlier
spellingShingle Spontaneous chiral symmetry breaking in liquid crystals
Kats, E.I.
К 100-летию со дня рождения И.М. Лифшица
title Spontaneous chiral symmetry breaking in liquid crystals
title_full Spontaneous chiral symmetry breaking in liquid crystals
title_fullStr Spontaneous chiral symmetry breaking in liquid crystals
title_full_unstemmed Spontaneous chiral symmetry breaking in liquid crystals
title_short Spontaneous chiral symmetry breaking in liquid crystals
title_sort spontaneous chiral symmetry breaking in liquid crystals
topic К 100-летию со дня рождения И.М. Лифшица
topic_facet К 100-летию со дня рождения И.М. Лифшица
url https://nasplib.isofts.kiev.ua/handle/123456789/129347
work_keys_str_mv AT katsei spontaneouschiralsymmetrybreakinginliquidcrystals