Spontaneous chiral symmetry breaking in liquid crystals

Автор(и)

  • E.I. Kats Landau Institute for Theoretical Physics, RAS, 2 Kosygina Str., Moscow 119334, Russia

DOI:

https://doi.org/10.1063/1.4974180

Ключові слова:

phase transitions, Landau expansion.

Анотація

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 INTB transition, or the sequence of the phases INNTB 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 INNTB sequence, and for the very weak first order phase transition INTB transformation occurs. Furthermore in the latter case the NTB structure can be biaxial heliconical nematic liquid crystal.

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Опубліковано

2016-11-18

Як цитувати

(1)
Kats, E. Spontaneous Chiral Symmetry Breaking in Liquid Crystals. Fiz. Nizk. Temp. 2016, 43, 7-10.

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