smectic C
On the biaxiality of smectic C and ferroelectric liquid crystals
... the smectic C and ferroelectric smectic C* phases ...the Smectic C Physics and Materials ...the smectic C and FLC ...
67
Effect of cell surfaces on the stability of chiral smectic C phases
... Orihara and Ishibashi 关8兴 in 1990 were the first to suggest a phenomenological model based on the Landau theory of phase transitions applied to the chiral smectic-C * variant phases soon after their ...
8
Ferroelectric ordering in chiral smectic- C* liquid crystals determined by nonchiral intermolecular interactions
... A more general and a very successful model has been proposed by the Boulder group [16, 17]. In the Boul- der model the molecules of the zig-zag shape (see Fig. 2) are ordering in the so-called binding cites which have ...
13
Minimality conditions for wave speed in anisotropic smectic C* liquid crystals
... the smectic A (or SmA) phase, the molecules tend to align perpendicular to the layers, while in the smectic C (SmC) phase, the director n is aligned at some angle away from the smectic layer ...
16
Cylindrical, spherical and toroidal layering of smectic C liquid crystals
... director. Smectic C liquid crys- tals are layered structures where the director makes an angle θ with respect to the layer ...The smectic structure can be described via a pair of orthogonal unit ...
15
Polymer stabilization of the smectic C-alpha* liquid crystal phase—Over tenfold thermal stabilization by confining networks of photo-polymerized reactive mesogens
... groups. 5 As photopolymerization initiator 2,2-dimethyloxy-2- phenyl acetophenone, known as Irgacure 651, was used. Three mixture compositions (A, B, and C) were prepared and added to the host FLC at 9 wt. % ...
5
Two kinds of the smectic C subphases in a liquid crystal and their relative stability dependent on the enantiomeric excess as elucidated by the electric field induced birefringence experiment
... a smectic layer can be specified by an Ising-like variable, which represents the collective property of a smectic layer as a whole but not the individual spin 共 the tilt direction of each molecule 兲 ; hence ...
12
Experimental study of high temperature smectic C FI2 phase in chiral smectic liquid crystals that exhibit phase sequence reversal
... ° C 关image 5共d兲兴 show signature similar to those of a SmC FI2 ⴱ phase, the signature is not that of a typical SmC FI2 ⴱ phase reported in the literature 关 4 兴 ...the c directors of only one of the layers ...
9
Behaviour of a shear-wave at a solid-smectic interface
... for smectic C (SmC), derivations of the dispersion relations for the reflected and refracted waves, together with the consequent interfacial conditions to be utilised in the ...
10
Boundary layers in pressure-driven flow in smectic A liquid crystals
... Illustrative examples of the above exact solutions can now be presented for the typical parameter values stated in Table 1 (cf. [12, 31, 34]). Not all of these selected parameters appear in the linearized equations; ...
35
On the orientational distribution functions in de Vries-type smectic liquid crystals
... Vries smectic liquid crystals the transition from the orthogonal smectic A (SmA) to the tilted smectic C (SmC) phase occurs with essentially no decrease in smectic layer ...
15
Molecular simulation of chevrons in confined smectic liquid crystals
... by smectic A LCs is always metastable with respect to the tilted layer arrangement, but persists because the lat- ter can only form following layer slippage at the LC-substrate interface ...a smectic ...
42
Elasticity of smectic liquid crystals with in-plane orientational order and dispiration asymmetry
... as smectic-C, hexatic smectics, and smectic-C* are endowed with in-plane orientational ...in Smectic-C* liquid crystals) with strengths of equal magnitude have disparate energies ...
10
Optical rotatory power, biaxiality and the models of the chiral tilted smectic phases
... the smectic layer thickness 共 ...tric smectic-C * phase, calculated from Berreman’s 4 ⫻ 4-matrix ap- proach for different values of 0 and the averaged value as a ...
10
Smectic layer instabilities in liquid crystals
... formed, smectic layer structures are ...reversible smectic C* layer straightening under application of an electric field in device ...the smectic layer normal may change in the plane of the ...
66
Experimental demonstration, using polarized Raman and infrared spectroscopy that both conventional and de Vries smectic A phase may exist in smectic liquid crystals with a first order A C* transition
... form smectic-A and/or smectic-C liquid crystals 共Sm-A and/or Sm-C兲, which are orientationally ordered fluids with a one-dimensional density ...in smectic layers, though not definitely ...
11
Conoscopy of chiral smectic liquid crystal cells
... a smectic C liquid crystal is larger than the wavelength of the inci- dent light, the average-refractive-index approximation is not supposed to be valid, and the liquid crystal cells can- not be considered ...
8
Effect of electric field on the polarised infrared spectra of smectic liquid crystals
... occur. C hem ical structural fragm ents w ithin m olecules, know n as fu n c tio n a l groups, tend to absorb infrared radiation in the sam e w avenum ber range regardless o f the structure o f the rest o f ...
179
Controlling Defects in Nematic and Smectic Liquid Crystals Through Boundary Geometry
... and smectic- A LCs in three dimensions as well as two-dimensional smectic LCs on curved ...Two-dimensional smectic LCs on curved substrates are examined in the special cases where the substrate ...
184
Controlling Defects in Nematic and Smectic Liquid Crystals Through Boundary Geometry
... 2D smectic liquid crystals, curvature of the substrate together with an imposed point disclination gives rise to a cusp grain-boundary line, and above a threshold curvature a pair of ± 1-index point disclinations ...
184