Long Range Particle Transport in Liquid Crystal-alkane Mixtures

2006 ◽  
pp. 142-146
Author(s):  
Beate Ullrich ◽  
Ewa Ilska ◽  
Norbert Höhn ◽  
Doris Vollmer
Keyword(s):  
Liquid Crystal ◽  
Long Range ◽  
Particle Transport

scholarly journals Liquid crystal phase of counter-rotating staircases – A case of antiferrochirality

2021 ◽  
Author(s):  
Ya-xin Li ◽  
Hong-fei Gao ◽  
Rui-bin Zhang ◽  
Kutlwano Gabana ◽  
Qing Chang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Long Range ◽  
Short Range ◽  
Liquid Crystal Phase ◽  
Helical Structures ◽  
New Approach ◽  
Chiroptical Properties ◽  
Pi Conjugated ◽  
Left Handed ◽  
Straight Rod

Abstract Helical structures continue to inspire, and there is considerable temptation to attribute helicity to columnar liquid crystals (LC). While short isohelical sequences are undoubtedly present, and longer ones in chiral or chiral-doped compounds, the order is only short-range, equivalent to a paramagnet without or with field. However, here we report a confirmed example of a true LC phase of achiral compounds consisting of columns, each being a long-range homochiral helix. Long-range periodicity and isochirality are maintained by intercolumnar interaction. This orthorhombic LC, spacegroup Fddd, is discovered in compounds with either bent or straight rod-like pi-conjugated cores. There are 4 right and 4 left-handed ribbons or star-profiled columns per unit cell. The structure is equivalent to an antiferromagnet with twist replacing spins. A theory based on interacting quadrupoles confirms this structure as energetically favoured over alternatives. The findings open a new approach to homochirality in achiral compounds, with promising optical/chiroptical properties.

scholarly journals Interplay between Long-Range Crystal Order and Short-Range Molecular Interactions Tunes Carrier Mobility in Liquid Crystal Dyes

2017 ◽  
Vol 9 (7) ◽  
pp. 6228-6236 ◽  
Author(s):  
Nadine Tchamba Yimga ◽  
Charusheela Ramanan ◽  
Holger Borchert ◽  
Jürgen Parisi ◽  
Harald Untenecker ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Long Range ◽  
Molecular Interactions ◽  
Short Range ◽  
Carrier Mobility

Test Particle Transport due to Long Range Interactions

1997 ◽  
Vol 78 (11) ◽  
pp. 2128-2131 ◽  
Author(s):  
F. Anderegg ◽  
X.-P. Huang ◽  
C. F. Driscoll ◽  
E. M. Hollmann ◽  
T. M. O'Neil ◽  
...  
Keyword(s):  
Long Range ◽  
Test Particle ◽  
Particle Transport ◽  
Long Range Interactions

Two-dimensional high-speed and long-range tomography and profilometry using liquid-crystal Fabry–Perot resonator

2015 ◽  
Vol 54 (4) ◽  
pp. 912 ◽  
Author(s):  
Tuan Quoc Banh ◽  
Kohei Suzuki ◽  
Munehiro Kimura ◽  
Tatsutoshi Shioda
Keyword(s):  
Liquid Crystal ◽  
Long Range ◽  
High Speed ◽  
Two Dimensional ◽  
Fabry Perot

Test particle transport from long-range collisions

1997 ◽  
Vol 4 (5) ◽  
pp. 1552-1558 ◽  
Author(s):  
F. Anderegg ◽  
X.-P. Huang ◽  
E. M. Hollmann ◽  
C. F. Driscoll ◽  
T. M. O’Neil ◽  
...  
Keyword(s):  
Long Range ◽  
Test Particle ◽  
Particle Transport

Reversible long range network formation in gold nanoparticle - nematic liquid crystal composites

Soft Matter ◽  
2012 ◽  
Vol 8 (1) ◽  
pp. 173-179 ◽  
Author(s):  
Jonathan Milette ◽  
Stephen J. Cowling ◽  
Violeta Toader ◽  
Cyrille Lavigne ◽  
Isabel M. Saez ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Gold Nanoparticle ◽  
Long Range ◽  
Nematic Liquid Crystal ◽  
Network Formation
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