Bird's-eye view to the realm of NTB liquid crystals
Abstract
In this work we start with an introductory review of the relatively recently discovered type of liquid crystals, twist-bend nematics NTB. Then we describe a more detailed account of recent developments in the field. Namely: (i) Landau Theory of the easy axis NTB nematics; (ii) Light scattering in the NTB liquid crystals; (iii) Rheological behavior of the ordered NTB samples; (iv) Shift of the N - NTB phase transition point (where N stands for the conventional nematic liquid crystal) under actions of external fields. It is found that advocated in this work simple phenomenological approach successfully explains available experimental data. The paper integrates the input from publications of other researchers, and presents a personal view of the author formed partially by his own results and discussions with his collaborators.
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