Physics of liquid crystals of bent-shaped molecules
Thermotropic liquid crystals can be formed by various molecular shapes, some discovered
over 125 years ago. The simplest and most-studied liquid crystals are made of rod-shaped …
over 125 years ago. The simplest and most-studied liquid crystals are made of rod-shaped …
The dependency of nematic and twist-bend mesophase formation on bend angle
We have prepared and studied a family of cyanobiphenyl dimers with varying linking groups
with a view to exploring how molecular structure dictates the stability of the nematic and twist …
with a view to exploring how molecular structure dictates the stability of the nematic and twist …
Magnetically tunable selective reflection of light by heliconical cholesterics
We present studies of chiral nematic liquid crystals composed of flexible dimer molecules
subject to large dc magnetic fields between 0 and 31 T. We observe that these fields lead to …
subject to large dc magnetic fields between 0 and 31 T. We observe that these fields lead to …
Nematic twist–bend phase in an external field
G Pająk, L Longa… - Proceedings of the …, 2018 - National Acad Sciences
The response of the nematic twist–bend (NTB) phase to an applied field can provide
important insight into the structure of this liquid and may bring us closer to understanding …
important insight into the structure of this liquid and may bring us closer to understanding …
Comparative analysis of anisotropic material properties of uniaxial nematics formed by flexible dimers and rod-like monomers
We report temperature dependencies of material properties such as dielectric anisotropy,
birefringence, splay (), twist (), and bend () elastic constants of the uniaxial nematic (N) …
birefringence, splay (), twist (), and bend () elastic constants of the uniaxial nematic (N) …
Mesophase structure and behaviour in bulk and restricted geometry of a dimeric compound exhibiting a nematic–nematic transition
N Sebastián, MG Tamba, R Stannarius… - Physical Chemistry …, 2016 - pubs.rsc.org
We present structural studies of a dimeric compound composed of a central heptyl spacer
linking two mesogens consisting of terphenyl units at which two adjacent fluoro groups are …
linking two mesogens consisting of terphenyl units at which two adjacent fluoro groups are …
Probing molecular ordering in the nematic phases of para-linked bimesogen dimers through NMR studies of flexible prochiral solutes
The quadrupolar splittings of perdeuteriated n-decane dissolved in nematic phases formed
by mesogenic dimers of the CBnCB series, for n= 7, 9, 10, 11, are measured throughout the …
by mesogenic dimers of the CBnCB series, for n= 7, 9, 10, 11, are measured throughout the …
Nematic twist-bend phase under external constraints
C Meyer - Liquid Crystals, 2016 - Taylor & Francis
The recently discovered twist-bend nematic phase, NTB, has short-pitched heliconical
structure with doubly degenerate handedness. In contrast to the classic nematic, in the NTB …
structure with doubly degenerate handedness. In contrast to the classic nematic, in the NTB …
Molecular dynamics simulations of nematic phases formed by cyano-biphenyl dimers
Molecular dynamics simulations of selected members of the cyano-biphenyl (CB) series of
dimers (CBnCB) have been set up using atomistic detail for the description of the alkyl …
dimers (CBnCB) have been set up using atomistic detail for the description of the alkyl …
Soft modes of the dielectric response in the twist–bend nematic phase and identification of the transition to a nematic splay bend phase in the CBC7CB dimer
The dielectric spectra of the twist–bend nematic phase (NTB) of (the bent-shaped) achiral
liquid-crystal dimer 1′′-, 7′′-bis (4-cyanobiphenyl-4′-yl) heptane (CB7CB) are studied …
liquid-crystal dimer 1′′-, 7′′-bis (4-cyanobiphenyl-4′-yl) heptane (CB7CB) are studied …