Anchoring transitions with polar and non-polar nematic liquid crystals on incompletely oxidized silane substrates

1999 ◽  
Vol 8 (2) ◽  
pp. 245-249 ◽  
Author(s):  
Y. Galerne ◽  
P. Hubert
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Anchoring Transitions

Critical behavior in anchoring transitions of nematic liquid crystals

1990 ◽  
Vol 64 (16) ◽  
pp. 1911-1914 ◽  
Author(s):  
J. Bechhoefer ◽  
J-L. Duvail ◽  
L. Masson ◽  
B. Jérme ◽  
R. M. Hornreich ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Critical Behavior ◽  
Nematic Liquid Crystals ◽  
Anchoring Transitions

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.

scholarly journals Pattern-induced anchoring transitions in nematic liquid crystals

2016 ◽  
Vol 29 (6) ◽  
pp. 064002 ◽  
Author(s):  
Óscar A Rojas-Gómez ◽  
José M Romero-Enrique ◽  
Nuno M Silvestre ◽  
Margarida M Telo da Gama
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Anchoring Transitions

Anchoring transitions of nematic liquid crystals

1991 ◽  
Vol 33 (1-4) ◽  
pp. 227-236 ◽  
Author(s):  
J. Bechhoefer ◽  
B. JÉRÔMe ◽  
P. Pieranski
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Anchoring Transitions
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