Chirality transfer across length-scales in nematic liquid crystals: fundamentals and applications

2011 ◽  
Vol 40 (1) ◽  
pp. 258-271 ◽  
Author(s):  
Silvia Pieraccini ◽  
Stefano Masiero ◽  
Alberta Ferrarini ◽  
Gian Piero Spada
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Length Scales ◽  
Chirality Transfer

ChemInform Abstract: Chirality Transfer Across Length-Scales in Nematic Liquid Crystals: Fundamentals and Applications

ChemInform ◽  
2011 ◽  
Vol 42 (19) ◽  
pp. no-no
Author(s):  
Silvia Pieraccini ◽  
Stefano Masiero ◽  
Alberta Ferrarini ◽  
Gian Piero Spada
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Length Scales ◽  
Chirality Transfer

scholarly journals Wetting of Nematic Liquid Crystals on Crenellated Substrates: A Frank–Oseen Approach

Crystals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 430 ◽  
Author(s):  
Óscar A. Rojas-Gómez ◽  
Margarida M. Telo da Gama ◽  
José M. Romero-Enrique
Keyword(s):  
Liquid Crystals ◽  
Characteristic Length ◽  
Nematic Liquid Crystals ◽  
Energy Contribution ◽  
Macroscopic Scale ◽  
Length Scales ◽  
Correlation Lengths ◽  
Anchoring Transitions ◽  
Interfacial States ◽  
Free Energy Contribution

We revisit the wetting of nematic liquid crystals in contact with crenellated substrates, studied previously using the Landau–de Gennes formalism. However, due to computational limitations, the characteristic length scales of the substrate relief considered in that study limited to less than 100 nematic correlation lengths. The current work uses an extended Frank–Oseen formalism, which includes not only the free-energy contribution due to the elastic deformations but also the surface tension contributions and, if disclinations or other orientational field singularities are present, their core contributions. Within this framework, which was successfully applied to the anchoring transitions of a nematic liquid crystal in contact with structured substrates, we extended the study to much larger length scales including the macroscopic scale. In particular, we analyzed the interfacial states and the transitions between them at the nematic–isotropic coexistence.

The electrohydrodynamic instability in twisted nematic liquid crystals

1994 ◽  
Vol 4 (2) ◽  
pp. 239-252 ◽  
Author(s):  
A. Hertrich ◽  
A. P. Krekhov ◽  
O. A. Scaldin
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Electrohydrodynamic Instability ◽  
Twisted Nematic

Surface disclinations in nematic liquid crystals

1975 ◽  
Vol 36 (1) ◽  
pp. 59-67 ◽  
Author(s):  
V. Vitek ◽  
M. Kléman
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals
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