Elasticity of smectic liquid crystals with in-plane orientational order and dispiration asymmetry | Zendy

Jaya Kumar Alageshan | Zendy; Buddhapriya Chakrabarti | Zendy; Yashodhan Hatwalne | Zendy

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Elasticity of smectic liquid crystals with in-plane orientational order and dispiration asymmetry

Author(s) -

Jaya Kumar Alageshan,

Buddhapriya Chakrabarti,

Yashodhan Hatwalne

Publication year - 2017

Publication title -

physical review. e

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.896

H-Index - 304

eISSN - 2470-0053

pISSN - 2470-0045

DOI - 10.1103/physreve.95.022701

Subject(s) - liquid crystal , elasticity (physics) , asymmetry , lamellar structure , condensed matter physics , materials science , flexoelectricity , order (exchange) , thermal fluctuations , physics , composite material , quantum mechanics , finance , economics

The Nelson-Peliti formulation of the elasticity theory of isolated fluid membranes with orientational order\udemphasizes the interplay between geometry, topology, and thermal fluctuations. Fluid layers of lamellar liquid\udcrystals such as smectic-C, hexatic smectics, and smectic-C∗ are endowed with in-plane orientational order. We\udextend the Nelson-Peliti formulation so as to bring these smectics within its ambit. Using the elasticity theory of\udsmectics-C∗, we show that positive and negative dispirations (topological defects in Smectic-C∗ liquid crystals)\udwith strengths of equal magnitude have disparate energies—a result that is amenable to experimental tests

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