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Monday, November 2, 2020 | History

5 edition of Defects in Liquid Crystals: Computer Simulations, Theory and Experiments (NATO Science Series II: Mathematics, Physics and Chemistry) found in the catalog.

Defects in Liquid Crystals: Computer Simulations, Theory and Experiments (NATO Science Series II: Mathematics, Physics and Chemistry)

  • 279 Want to read
  • 30 Currently reading

Published by Springer .
Written in English

    Subjects:
  • Condensed matter physics (liquids & solids),
  • Physics,
  • Crystallography,
  • Science/Mathematics,
  • Computer Simulation,
  • Liquid Crystallography,
  • Science,
  • Liquid crystals,
  • Defects,
  • General,
  • Technology / Material Science,
  • Computer Engineering,
  • Congresses

  • Edition Notes

    ContributionsOleg D. Lavrentovich (Editor), Paolo Pasini (Editor), Claudio Zannoni (Editor), Slobodan Zumer (Editor)
    The Physical Object
    FormatHardcover
    Number of Pages360
    ID Numbers
    Open LibraryOL8369797M
    ISBN 10140200169X
    ISBN 109781402001697

      To understand defect formation in higher-genus nematic droplets, we use computer simulations of a simple nematogenic lattice model. For this model, the elastic constants are equivalent, K 1 = K 2 = K 3, and no special consideration of the saddle .


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Defects in Liquid Crystals: Computer Simulations, Theory and Experiments (NATO Science Series II: Mathematics, Physics and Chemistry) Download PDF EPUB FB2

Defects in Liquid Crystals: Computer Simulations, Theory and Experiments. be considered as an extremely useful laboratory for topological defects. This book is the first attempt to present together complementary approaches to the investigations of topological defects in liquid crystals using theory, experiments and computer simulations.

This book is the first attempt to present together complementary approaches to the investigations of topological defects in liquid crystals using theory, experiments and computer simulations.

Show all. Available in: gical defects are the subject of intensive studies in many different branches of physics ranging from cosmology to liquid Due to COVID, orders may be delayed. Thank you for your : $ Proceedings of the NATO Advanced Research Workshop on Computer Simulations of Defects in Liquid Crystals: Computer Simulations in Liquid Crystals Including their Relation to Theory and Experiment, held in.

Defects in Liquid Crystals: Computer Simulations, Theory and Experiments Article (PDF Available) January with Reads How we measure 'reads'.

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This book is the first attempt to present together complementary approaches to the investigations of topological defects in liquid crystals using theory, experiments and computer simulations. Abstract. Monte Carlo simulations of spin models for some confined liquid crystal systems and their defects are described.

In particular, simulations of polymer dispersed nematic droplets and nematic films with different boundary conditions are treated. Defects: O. Lavrentovich and M. Kleman, “Defects and Topology of Cholesteric Liquid Crystals” ; Oleg Lavrentovich “Defects in Liquid Crystals: Computer Simulations, Theory and Experiments”.

Optics: Iam-Choon Khoo, Shin-Tson Wu, “Optics and Nonlinear Optics of Liquid Crystals. DEFECTS AND UNDULATION IN LAYERED LIQUID CRYSTALS T. ISHIKAWA AND 0. LAVRENTOVICH The experiments reveal that the displacement of layers Defects in Liquid Crystals: Computer Simulations, Theory and Experiments, 27 O Kluwer Academic Publishers.

Printed in the Netherlands. AbstractThe rich variety of defects in ordered media has been interesting for a long time. Group theory [1] as well as analytical calculations [2] have been used to describe defects.

The numerical algorithm applied here provides a third method, using elements of both of the above approaches and thereby closing the gap between them.

As a bonus, the simulation of sophisticated structures such. Computer simulations play an increasingly important role in investigating fundamental issues in the physics of liquid crystals. Presented here are the results of three projects which utilize the unique power of simulations to probe questions which neither theory nor experiment can adequately answer.

Throughout, we use the (generalized) Gay-Berne model, a widely-used phenomenological potential. This book is the first attempt to present together Theory and Experiments book approaches to the investigations of topological defects in liquid crystals using theory, experiments and computer simulations.\/span>\"@ en\/a> ; \u00A0\u00A0\u00A0\n schema:description\/a> \" 1 Classification of defects in liquid crystals -- 2 Alignment tensor versus director.

Biaxial Nematic Liquid Crystals: Theory, Simulation, and Experiment. Editor(s): to create displays with fast switching times and may have applications in thin-film displays and other liquid crystal technologies.

This book is the first to be concerned solely with biaxial nematic liquid crystals, both lyotropic and thermotropic, formed by low. Indeed “defect engineering” is a blooming methodology for fabricating novel complex molecular organizations starting from liquid crystal topological defects 1,2,3,4,5,6,7,8,9,10,11,12,13,14, Computer Simulations of Liquid Crystals and Polymers.

Acute and Chronic Acute Ad Hoc Mobile Wireless Networks Principles. Defects: Oleg Lavrentovich “Defects in Liquid Crystals: Computer Simulations, Theory and Experiments”. Optics: Iam-Choon Khoo, Shin-Tson Wu, “Optics and Nonlinear Optics of Liquid Crystals”.

Textures: Ingo Dierking “Textures of Liquid Crystals”. Recent simulations and experiments (14–16) have revealed that multiparticle structures can also form when particle-mediated defects become entangled.

Again, in a 2D planar nematic cell, different entangled-defect configurations around particles can give rise to various multiparticle clusters (chains, etc.), as well as 2D crystals (13).

Introduction to liquid crystals Denis Andrienko International Max Planck Research School 7 Defects 23 8 Computer simulation of liquid crystals 24 9 Applications 27 1.

Computer Simulations, Theory and Experiments”, Ref. [5]. Optics: Iam-Choon Khoo, Shin-Tson Wu, “Optics and Nonlinear Optics of Liquid Crystals”. Paolo Pasini and Claudio Zannoni, editors, Advances in the Computer Simulation of Liquid Crystals, Kluwer Academic (). Susanne Pfalzner and Paul Gibbon, Many-Body Tree Methods Methods in Physics, Cambridge University Press In the nematic liquid crystal phase, rod-shaped molecules move randomly but remain essentially parallel to one another.

Liquid crystals (LCs) are a state of matter which has properties between those of conventional liquids and those of solid instance, a liquid crystal may flow like a liquid, but its molecules may be oriented in a crystal-like way.

There are many different types of liquid-crystal phases, which can be distinguished by their different optical properties (such as textures). Liquid crystal mixtures are used in commercial applications and their composition affects their properties.

Here Rahimiet al. use atomistic simulations to show that defects. Theory and Simulation of Defect Dynamics in Confined Liquid Crystals (Developed a new methodology to analyze the defects patterns in materials and a novel mathematical model to extract viscoelastic properties from the images) Advisor: Prof.

Alejandro D. Rey In collaboration with Prof. Mohan Srinivasarao at Georgia Institute of Technology). We consider the applicability of coarse-grained molecular dynamics for the simulation of defects in a nematic liquid crystal around a colloidal particle.

Two types of colloids are considered, a soft colloid resembling a liquid crystal dendrimer or a similar macromolecule. In addition, a decorated colloid is used which could represent a gold nanoparticle with mesogen-modified surface.

And experiments will be joined by theory and computer simulations to eventually produce applications which will exploit the best of all areas, liquid crystals and nanomaterials, not only to improve display applications, but also to generate novel applications in the fields of optics, sensors.

This book is an outgrowth of the enormous advances made during the last three decades in both our understanding of liquid crystals and our ability to use them in applications. It presents a systematic, self-contained and up-to-date overview of the structure and properties of liquid crystals.

That was the staring point of the present study. On our previous study [1], I got a chance to use a new fluorescent molecule called C-Naphox [2] as a fluorescent probe to clarify some defect structures in typical nematic liquid crystals, anisotropic liquids, showing schlieren textures.

Defects in liquid crystals: computer simulations, theory, and experiments Oleg D. Lavrentovich, Paolo Pasini, Claudio Zannoni, Slobodan Žumer Materials Science.

In the nematic liquid crystal phase, rod-shaped molecules move randomly but remain essentially parallel to one another. Biaxial nematics, which were first predicted in by Marvin Freiser, have their molecules differentially oriented along two axes. They have the potential to create displays with fast switching times and may have applications in thin-film displays and other liquid crystal.

“Visualization of Topological Defects in Nematic Liquid Crystals Using Streamtubes, Streamsurfaces and Ellipsoids,” (with V. Slavin, S. Zhang, D. Laidlaw, G. Loriot and A. Callan-Jones), IEEE Transactions on Visualization and Computer Graphics.

“Topological Defect Behavior in a Quenched Nematic Liquid Crystal,” (with J. Billeter, A. Smondyrev and G. Loriot), in Defects in Liquid Crystals: Computer 5.

In a previous deuterium NMR study conducted on a liquid crystalline (LC) polymer with laterally attached book-shaped molecules as the mesogenic moiety, we have revealed a biaxial nematic phase below the conventional uniaxial nematic phase (Phys.

Rev. Lett. 92, ). To elucidate details of its formation, we here report on deuterium NMR experiments that have been conducted on different. Search result for oleg-d-lavrentovich: Defects in Liquid Crystals: Computer Simulations, Theory and Experiments(), Defects in Liquid Crystals: Computer Simulations, Theory and Experiments(), Soft Matter Physics(), Soft Matter Physics(), Soft Matter Physics(), Soft Matter Physics.

Molecular simulation and theory of a liquid crystalline disclination core the results of computer simulation using a simple molecular model. Computer simulation is a well established method of In analyzing experiments on nem-atic liquid crystals in cylindrical pores, Crawford et al.

♥ Book Title: Defects in Liquid Crystals: Computer Simulations, Theory and Experiments ♣ Name Author: Oleg Lavrentovich ∞ Launching: Info ISBN Link: X ⊗ Detail ISBN code: ⊕ Number Pages: Total sheet ♮ News id:.

The KTHNY-theory describes melting of crystals in two dimensions (2D). The name is derived from the initials of the surnames of John Michael Kosterlitz, David J. Thouless, Bertrand Halperin, David R.

Nelson, and A. Peter Young, who developed the theory in the s. It is, beside the Ising model in 2D and the XY model in 2D, one of the few theories, which can be solved analytically and which.

mentally and on the basis of continuum theory [9], neither microscopic theory derivations nor computer simulations of such stable defects exist for this LC system.

MC simu-lation is a particularly attractive technique to study defects [10], since it provides a way of determining equilibrium molecular organizations starting in principle from an.

2 days ago  In this study, first, we numerically investigated the reflectivity of a cholesteric liquid crystal with an anisotropic defect layer inside. To model optical phenomena in the examined system, a 4 × 4 matrix method was employed.

The tests were carried out for different thicknesses of the whole system, different thicknesses of the defect layer, as well as different defect layer locations inside.

O.D. Lavrentovich, "Topological defects in dispersed liquid crystals, or words and worlds around liquid crystal drops," presented at the Capri Symposium ().

[PDF] A. Sparavigna,O.D. Lavrentovich, A. Strigazzi, "Magnetic Field Effect on Periodic Stripe Domains in Nematic Liquid Crystals," E, 51, (). Numerical modeling of nematic liquid crystals using the tensorial Landau-de Gennes (LdG) theory provides detailed insights into the structure and energetics of the enormous variety of possible topological defect configurations that may arise when the liquid crystal is in contact with colloidal inclusions or structured boundaries.

However, these methods can be computationally expensive, making. @article{osti_, title = {Defects and structural phase transitions}, author = {Levanyuk, A P and Sigov, A S}, abstractNote = {It is widely understood that many important properties of solids are conditioned or strongly influenced by lattice defects.

This book covers the following subjects: elements of the theory of phase transitions in perfect crystals; phase transitions in imperfect.Computer simulations of biaxial nematics To cite this article: Roberto Berardi et al J.

Phys.: Condens. Matter 20 View the article online for updates and enhancements. Related content Hard-body models of bulk liquid crystals Luis Mederos, Enrique Velasco and Yuri Martínez-Ratón-Computer simulation of liquid crystals C M Care and D.

Computer simulation is an essential tool in studying the chemistry and physics of condensed matter, complementing and reinforcing both experiment and theory. Simulations provide detailed information about structure and dynamics, essential to understand the many fluid systems that play a key role in our daily lives:Reviews: