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相关论文: The liquid-crystalline smectic blue phases

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We report on a construction for smectic blue phases, which have quasi-long range smectic translational order as well as long range cubic or hexagonal order. Our proposed structures fill space with a combination of minimal surface patches…

软凝聚态物质 · 物理学 2009-11-07 B. A. DiDonna , Randall D. Kamien

We report on a construction for smectic blue phases, which have quasi-long range smectic translational order as well as three dimensional crystalline order. Our proposed structures fill space by adding layers on top of a minimal surface,…

软凝聚态物质 · 物理学 2007-05-23 B. A. DiDonna , Randall D. Kamien

Blue phase liquid crystal (BPLC) has important applications in adaptive lenses and phase modulators due to its polarization-independent property. During our efforts for development of the new materials, we found a novel phenomenology of…

光学 · 物理学 2015-10-29 Prasenjit Nayek , Sebastian Gauza , Guoqiang Li

Computer simulation study of phase transitional behaviour of cholesterol molecules embedded with terminal dipole is reported. In this work, coarse-grained modeling of cholesteric molecules is done to study the influence of the coupled…

软凝聚态物质 · 物理学 2018-10-01 Tanay Paul Jayashree Saha

We study the phase behaviour of a quasi-two dimensional cholesteric liquid crystal shell. We characterise the topological phases arising close to the isotropic-cholesteric transition, and show that they differ in a fundamental way from…

软凝聚态物质 · 物理学 2022-08-25 Livio Nicola Carenza , Giuseppe Gonnella , Davide Marenduzzo , Giuseppe Negro , Enzo Orlandini

Semiflexible polymers in concentrated lyotropic solution are studied within a bead-spring model by molecular dynamics simulations, focusing on the emergence of a smectic A phase and its properties. We systematically vary the density of the…

软凝聚态物质 · 物理学 2019-01-28 Andrey Milchev , Arash Nikoubashman , Kurt Binder

Liquid crystalline systems exhibiting both macroscopic chirality and smectic order experience frustration resulting in mesophases possessing complex three-dimensional order. In the twist-grain-boundary phase, defect lattices mediate the…

软凝聚态物质 · 物理学 2009-12-18 Elisabetta A. Matsumoto , Gareth P. Alexander , Randall D. Kamien

I propose a double-twist texture with local smectic order, which may have been seen in recent experiments. As in the Renn-Lubensky TGB phase, the smectic order is broken only through a lattice of screw dislocations. A melted lattice of…

软凝聚态物质 · 物理学 2009-10-28 Randall D. Kamien

We report a molecular dynamics simulation demonstrating that the Smectic B crystalline phase (Cr-B), commonly observed in mesogenic systems of anisotropic molecules, can be formed by a system of identical particles interacting via a…

软凝聚态物质 · 物理学 2013-12-16 A. Metere , T. Oppelstrup , S. Sarman , A. Laaksonen , M. Dzugutov

This paper reviews the research work on the liquid crystalline (LC) polymer vesicles (polymersomes), where the thermotropic nematic and smectic phases are displayed in the lyotropic bilayer polymer membrane. LC polymersomes possess the…

软凝聚态物质 · 物理学 2015-03-05 Lin Jia , Min-Hui Li

Experimental and modeling/simulation studies of phase equilibrium and growth morphologies of novel polymer-dispersed liquid crystal (PDLC) mixtures of PS (polystyrene) and liquid crystals that exhibit a direct isotropic/smectic-A (lamellar)…

软凝聚态物质 · 物理学 2015-05-13 Ezequiel R. Soule , Nasser Mohieddin Abukhdeir , Alejandro D. Rey

Recently, a new class of smectic liquid crystal phases (SmCP phases) characterized by the spontaneous formation of macroscopic chiral domains from achiral bent-core molecules has been discovered. We have carried out Monte Carlo simulations…

统计力学 · 物理学 2009-11-07 Yves Lansac , Prabal K. Maiti , Noel A. Clark , Matthew A. Glaser

A series of asymmetric dimers with an odd number of atoms in the spacer were found to form different types of twisted structures despite being achiral. The formation of a variety of helical structures is accompanied by a gradual freezing of…

The phase behavior of the system of parallel rigid triblock copolymers is examined using the second-virial density functional theory. The triblock particle consists of two identical infinitely thin hard rods of finite lengths on the…

软凝聚态物质 · 物理学 2007-10-15 Szabolcs Varga , Seth Fraden

The cubic blue phases of liquid crystals are fascinating and technologically promising examples of hierarchically structured soft materials, comprising ordered networks of defect lines (disclinations) within a liquid crystalline matrix. We…

软凝聚态物质 · 物理学 2011-12-16 O. Henrich , K. Stratford , D. Marenduzzo , M. E. Cates

We explore the phase behavior and structure of orthogonal smectic liquid crystals consisting of bent-core molecules (BCMs) by means of Monte Carlo molecular simulations. A simple athermal molecular model is introduced that describes the…

软凝聚态物质 · 物理学 2016-07-26 Stavros D. Peroukidis , Alexandros G. Vanakaras , Demetri J. Photinos

We show that smectic liquid crystals confined in_anisotropic_ porous structures such as e.g.,_strained_ aerogel or aerosil exhibit two new glassy phases. The strain both ensures the stability of these phases and determines their nature. One…

软凝聚态物质 · 物理学 2009-10-31 Brad Jacobsen , Karl Saunders , Leo Radzihovsky , John Toner

In this article we consider systems of parallel hard {\it superellipsoids}, which can be viewed as a possible interpolation between ellipsoids of revolution and cylinders. Superellipsoids are characterized by an aspect ratio and an exponent…

软凝聚态物质 · 物理学 2009-11-13 Yuri Martinez-Raton , Enrique Velasco

The discovery of fluid states of matter with spontaneous bulk polar order is appreciated as a major discovery in the fields of soft matter and liquid crystals. Typically, this manifests as polar order superimposed atop conventional phase…

软凝聚态物质 · 物理学 2024-11-22 Jordan Hobbs , Calum J. Gibb , Damian Pociecha , Jadwiga Szydłowska , Ewa Górecka , Richard. J. Mandle

Smectic liquid crystals are materials formed by stacking deformable, fluid layers. Though smectics prefer to have flat, uniformly-spaced layers, boundary conditions can impose curvature on the layers. Since the layer spacing and curvature…

微分几何 · 数学 2007-05-23 Randall D. Kamien , Christian D. Santangelo
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