smectic phases
Theory of the intermediate tilted smectic phases and their helical rotation
... Department of Electronic and Electrical Engineering, Trinity College, University of Dublin, Dublin 2, Ireland 共 Received 7 April 2005; revised manuscript received 10 January 2006; published 13 July 2006 兲 A ...
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Field induced transitions and interlayer interactions in intermediate smectic phases.
... certain smectic phases can exhibit ferroelectricity, ferrielectricity and antiferroelectricity 1 ; in all such cases the material is chiral and the director ! (the average molecular direction) is tilted ...
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Sequence of Four Orthogonal Smectic Phases in an Achiral Bent Core Liquid Crystal: Evidence for the SmAP(alpha) Phase
... LC phases these reflections are observed in a direction normal to the line joining the maxima of the diffuse wide angle scattering at d ¼ 0:48 ...four smectic phases, this excludes the onset of any ...
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Optical Birefringence Studies on Cholesteric and Induced Smectic Phases of Ternary Mixture of Liquid Crystalline Materials
... crystalline phases as a function of temperature by themselves and lyotropic liquid crystalline phases upon addition of some solvent, such as water or diethylene glycol ...exhibit smectic ...
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Optical and electrical conductivity measurements of induced reentrant smectic phases of in ternary mixture of liquid crystalline materials
... crystalline phases possess characteristic textures when viewed under polarized ...identify phases, result from defects in the liquid ...various phases like Nematic, Cho, TGB and induced ...
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Optical rotatory power, biaxiality and the models of the chiral tilted smectic phases
... The homeotropic alignment proved to be useful in deter- mining the unit cell biaxiality of helical phases. The Schlieren textures cannot be observed in a thick sandwich cell due to its significantly large ...
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Field induced transformations in the biaxial order of non tilted phases in a bent core smectic liquid crystal
... blue phases. In smectics, the switching in Sm AP R and Sm AP A phases is brought by E interacting with the dipole moment directed along the minor ...the smectic phases since the major director ...
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Experimental investigations on biaxial nematic and orthogonal biaxial smectic liquid crystals
... 11 Two orthogonal smectic phases and an adjacent nematic phase This chapter describes the study of a 4-cyanoresorcinol based bent-core liquid cnjstal which exhibit an interesting phase s[r] ...
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Fractal Growth of a Conventional Calamitic Liquid Crystal
... both phases being somewhat similar to the fluid smectic phases of conventional calamitic mesogens, while the latter generally grow via non- fractal smectic bâtonnets to form fan-shaped ...
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Conoscopy of chiral smectic liquid crystal cells
... SmA phases in reality are single biaxial plates, and the tilt angle and biaxiality are reasonably ...ral smectic in its various phases is not a single biaxial plate, and strictly speaking, the ...
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Molecular theory of proper ferroelectricity in bent-core liquid crystals
... orthogonal smectic phases com- posed of nonchiral bent-core ...and smectic A phases and conclude that the delicate balance between the tendencies for local parallel and antiparallel ordering ...
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Spontaneous helix formation in non chiral bent core liquid crystals with fast linear electro optic effect
... (SmC–like) smectic phases 4,9 . In contrast to orthogonal BC phases 10,11 , electro-optical effects can possibly be used for applications in tilted smectic phases of BCLC have not so ...
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Orientational Behavior of Liquid-Crystalline Polymers with Amide Groups
... The influence of hydrogen bonding between the secondary amide groups was shown by the temperature-variable IR spectra of PAADH. Moreover, the very sharp outer reflection in the wide-angle X-ray scattering exhibited the ...
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Experimental study of high temperature smectic C FI2 phase in chiral smectic liquid crystals that exhibit phase sequence reversal
... is the transition temperature between the synclinic and anti- clinic smectic phases in the absence of other intermediate phases. The last four terms in Eq. 共2兲 involve the polarization P, which is ...
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Modelling and Simulation of Three Phases to Seven Phases Transformer Connection
... In this iron core are separated in designated with one primary and three secondary coils, six terminal of primary side are connected in an adoptable manner resulting in star and or delta connection and the 18 terminals ...
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Computer simulation of confined liquid crystal dynamics
... temperature smectic phase, but the effect of periodic boundary conditions could invalidate analysis of any tilt produced on ...simulation, smectic layers can tilt in order to resolve a mismatch between the ...
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A Possibilities of Simulation of Three Phases to Thirteen Phases Transformer Connection
... input phases are designed given with alphabets “x”, “y”, and “z” and their output is designated with letters are “A”, “B”, “C”, “D”, “E”, “F”, “G”, “H”, “I”, “J”, “K”, “L” and ...
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Comparison of the characteristics of the chiral analog of the de Vries type of smectic A* phase
... It is clearly seen from the experimental results that mate- rials under investigation do not possess a conventional SmA phase, except the de Vries type of SmA * phase but their behavior to the induced tilt angle 共 ...
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Molecular simulation of chevrons in confined smectic liquid crystals
... The orientational profiles are described using the commonly used director tilt angle θ, measured relative to the xy-plane. We have also monitored, but do not show (for reasons of space), profiles of the director ...
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Ferroelectric ordering in chiral smectic- C* liquid crystals determined by nonchiral intermolecular interactions
... a chiral biaxial molecule represented as a rigid rod with two ’lateral groups’ and a permanent dipole perpendicu- lar to the molecular plane as shown in Fig. 4a. Note that the lateral groups make the molecule biaxial ...
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