Micro-Macro System for Nematic Liquid Crystals
The nematic phases of bent-core liquid crystals
... As mentioned above, dielectric spectroscopy carried out as a function of temperature can reveal information about the molecular dynamics of a system. Figure 6 a and b show the di- electric permittivity and ...
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Continuum theory of biaxial nematic liquid crystals
... any boundary influences or elastic contributions. We seek to find all the steady, uniform flow alignment configurations that can occur in simple shear flow; these will necessarily be solutions to the dynamic continuum ...
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Elastic constants and dynamics in nematic liquid crystals
... We have calculated the Frank elastic constants of the Gay-Berne fluid for two different parameterizations at various state points using molecular dynamics. We have shown that for a sufficiently large simulation box, the ...
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Propagating director bend fluctuations in nematic liquid crystals
... FIG. 2. Decay rates ν and oscillation frequencies ω, obtained by fitting eqn (1) to c bend (k, t), as functions of k 2 , for the same system as Fig. 1. Points with error bars are simulation results. Lines are ...
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Competing alignments of nematic liquid crystals on square patterned substrates
... present system is quali- tatively quite different from that seen where a nematic is aligned between equivalent striped ...the nematic is divided into domains of vertical and planar alignment that ...
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Flexoelectric polarization studies in bent core nematic liquid crystals
... bent-core nematic liquid crystals (LCs) has been measured using the pyroelectric ...aligned nematic cells are fabricated for measuring the pyroelectric response over the entire range of the ...
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Nematic liquid crystals doped with nanoparticles : phase behavior and dielectric properties
... of nematic liquid crystals doped with various nanoparticles have been studied in the framework of a molecular mean-field ...the liquid crystal material and cause a de- crease of the ...
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Single and three pulse photoselection of dye probes in nematic liquid crystals
... Keywords: molecular probe, alignment, rotational diffusion, picosecond, fluorescence anisotropy, polarisation. 1. INTRODUCTION ,Q DQ RUGHUHG PHGLXP LW LV FUXFLDO WR DFKLHYH D IXOO UHVROXWLRQ RI WKH RULHQWDWLRQDO ERWK DQG ...
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Deck The Walls: Curvature-Mediated Assembly In Confined Nematic Liquid Crystals
... closer and closer to corners, the energy steadily lowers, until it reaches a minimum of U = -2669.84, lowered an additional ∆U = 149 k B T when both colloids are located at the corners as shown in Fig. 5.10e, which is ...
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Controlling Defects in Nematic and Smectic Liquid Crystals Through Boundary Geometry
... focal curves. It is geometrically possible for smectic layers to fill the space immediately outside of these “corresponding cones” with portions of spheres concentric about P , again without discontinuity in layer ...
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Controlling Defects in Nematic and Smectic Liquid Crystals Through Boundary Geometry
... focal curves. It is geometrically possible for smectic layers to fill the space immediately outside of these “corresponding cones” with portions of spheres concentric about P , again without discontinuity in layer ...
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Global well-posedness of the non-isothermal model for incompressible nematic liquid crystals
... (.) which is a semilinear system called the penalized model. When the viscosity coefficient is large enough, the global existence of the unique classical solution was proved in []. Subsequently, they obtained the ...
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Short-range smectic fluctuations and the flexoelectric model of modulated nematic liquid crystals
... a system made of enantiopure dimers the additional interactions will modify the short range pitch resulting in two periodicities: the one coming from steric inter- actions is incommensurate with the one resulting ...
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Fredericksz transition threshold in nematic liquid crystals filled with ferroelectric nano particles
... A system analogous to this, but in which potentially much more dramatic effects might be expected, involves ferroelectric rather than ferromagnetic colloidal ...the liquid crystal director strongly at the ...
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Efficient moving mesh methods for Q-tensor models of nematic liquid crystals
... OF NEMATIC LIQUID CRYSTALS CRAIG ...the system of six coupled partial differential equations which arises when using Q-tensor theory to model the behaviour of a nematic liquid ...
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Large Deviations for Stochastic Nematic Liquid Crystals driven by Multiplicative Gaussian Noise
... stochastic system is based on the Girsanov theorem and that of the deterministic sys- tem is based on the classical Faedo-Galerkin approximations and compactness arguments, and is placed in Appendix ...
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Martingale solutions of nematic liquid crystals driven by pure jump noise in the Marcus canonical form
... of nematic liquid crystals, effected by altering external ...above system governing the nematic liquid crystals under the influence of fluctuating external ...
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Kickback in nematic liquid crystals
... Portugal ) Abstract. We describe a nonlocal linear partial differential equation arising in the analysis of dynamics of a nematic liquid crystal. We confirm that it accounts for the kick- back phenomenon by ...
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Expulsion of disclinations in nematic liquid crystals
... – Liquid crystals: nematic, cholesteric, smectic, discotic, ...a nematic liquid crystal disclination and the surface of the half-space which bounds ...the nematic may expel the ...
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Elasticity Tensors in Nematic Liquid Crystals
... in nematic liquid crystals can be described by tensors, and how these tensors can be represented using the director components and the Kronecker and Levi-Civita ...
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