From molecular biaxiality of real board-shaped mesogens to phase biaxiality? On the hunt for the holy grail of liquid crystal science

Soft Matter ◽  
2019 ◽  
Vol 15 (42) ◽  
pp. 8496-8511 ◽  
Author(s):  
Matthias Lehmann ◽  
Stefan Maisch ◽  
Nikolai Scheuring ◽  
José Carvalho ◽  
Carlos Cruz ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Nematic Phase ◽  
Molecular Axis ◽  
Holy Grail ◽  
Biaxial Nematic ◽  
Biaxial Nematic Phase

In the search of the predicted biaxial nematic phase, a series of shape-persistent board-shaped mesogens with maximum molecular biaxiality and a dipole along the minor molecular axis were designed to form nematic (N) mesophases.

A new soap/detergent/water lyotropic liquid crystal with a biaxial nematic phase

1989 ◽  
Vol 5 (6) ◽  
pp. 1669-1675 ◽  
Author(s):  
E. A. Oliveira ◽  
L. Liebert ◽  
A. M. Figueiredo Neto
Keyword(s):  
Liquid Crystal ◽  
Nematic Phase ◽  
Lyotropic Liquid Crystal ◽  
Biaxial Nematic ◽  
Biaxial Nematic Phase

scholarly journals Domain walls and anchoring transitions mimicking nematic biaxiality in the oxadiazole bent-core liquid crystal C7

Soft Matter ◽  
2015 ◽  
Vol 11 (20) ◽  
pp. 3963-3970 ◽  
Author(s):  
Young-Ki Kim ◽  
Greta Cukrov ◽  
Jie Xiang ◽  
Sung-Tae Shin ◽  
Oleg D. Lavrentovich
Keyword(s):  
Liquid Crystal ◽  
Nematic Phase ◽  
Domain Walls ◽  
Anchoring Transitions ◽  
Biaxial Nematic ◽  
Biaxial Nematic Phase

“Secondary disclinations” previously considered as evidence of a biaxial nematic phase are shown to be domain walls in a uniaxial nematic phase.

Uniaxial to biaxial nematic phase transition in a bent-core thermotropic liquid crystal by polarising microscopy

2012 ◽  
Vol 39 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Stephen J. Picken ◽  
Theo J. Dingemans ◽  
Louis A. Madsen ◽  
Oriano Francescangeli ◽  
Edward T. Samulski
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Nematic Phase ◽  
Thermotropic Liquid Crystal ◽  
Biaxial Nematic ◽  
Biaxial Nematic Phase

scholarly journals Self-assembly of freely-rotating polydisperse cuboids: unveiling the boundaries of the biaxial nematic phase

Soft Matter ◽  
2020 ◽  
Vol 16 (24) ◽  
pp. 5565-5570 ◽  
Author(s):  
Effran Mirzad Rafael ◽  
Daniel Corbett ◽  
Alejandro Cuetos ◽  
Alessandro Patti
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Self Assembly ◽  
Nematic Phase ◽  
Self Assembling ◽  
Crystal Phases ◽  
Biaxial Nematic ◽  
Liquid Crystal Phases ◽  
Biaxial Nematic Phase

Polydisperse colloidal cuboids display a very rich self-assembling behaviour, which includes stable biaxial nematic liquid crystal phases.

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