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相关论文: Formation of a Columnar Liquid Crystal in a Simple…

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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

In the wake of previous studies on the rattling-and-jumping diffusion in smectic liquid crystal phases of colloidal rods, we analyze here for the first time the heterogeneous dynamics in columnar phases. More specifically, we perform…

软凝聚态物质 · 物理学 2015-05-19 Simone Belli , Alessandro Patti , René van Roij , Marjolein Dijkstra

The behavior of identical particles interacting through the harmonic-repulsive pair potential has been studied in 3D using molecular dynamics simulations at a number of different densities. We found that at many densities, as the…

软凝聚态物质 · 物理学 2017-10-11 V. A. Levashov

We introduce a model to describe columnar phases of chiral discotic liquid phases in which the normals to disc-like molecules are constrained to lie parallel to columnar axes. The model includes separate chiral interactions favoring,…

软凝聚态物质 · 物理学 2008-02-03 Gu Yan , T. C. Lubensky

In this note, we report about two, as it seems to us, rather unusual observations made in molecular dynamics simulations of the single component systems of particles interacting through the harmonic-repulsive pair potential in 3D. In…

软凝聚态物质 · 物理学 2017-10-17 Valentin A. Levashov

Recent theories predict that when a supercooled liquid approaches the glass transition, particle clusters with a special "amorphous order" nucleate within the liquid, which lead to static correlations dictating the dramatic slowdown of…

软凝聚态物质 · 物理学 2016-03-04 Bo Zhang , Xiang Cheng

We study the phase behavior of bowl-shaped particles using computer simulations. These particles were found experimentally to form a meta-stable worm-like fluid phase in which the bowl-shaped particles have a strong tendency to stack on top…

软凝聚态物质 · 物理学 2011-12-07 Matthieu Marechal , Marjolein Dijkstra

We investigate the phase behavior of a single-component system in 3 dimensions with spherically-symmetric, pairwise-additive, soft-core interactions with an attractive well at a long distance, a repulsive soft-core shoulder at an…

软凝聚态物质 · 物理学 2009-11-07 G. Franzese , G. Malescio , A. Skibinsky , S. V. Buldyrev , H. E. Stanley

A model for a monolayer of two types of particles spontaneously forming ordered patterns is studied by a mesoscopic theory and by MC simulations. We assume hard-cores of the same size for both components, short-range attraction long-range…

软凝聚态物质 · 物理学 2023-11-10 O. Patsahan , A. Meyra , A. Ciach

Solitons in liquid crystals are spatially localised stable configuration of the liquid crystal orientational order parameter that exhibit emergent particle-like properties such as mutual interaction, translational motion and reconfigurable…

软凝聚态物质 · 物理学 2024-10-08 Allison W. Teixeira , Cristóvão S. Dias , Mykola Tasinkevych

It has recently been shown that identical, isotropic particles can form complex crystals and quasicrystals. In order to understand the relation between the particle interaction and the structure, which it stabilizes, the phase behavior of a…

材料科学 · 物理学 2009-04-01 Michael Engel , Hans-Rainer Trebin

Colloidal particles trapped at an interface between two fluids can form a wide range of different structures. Replacing one of the fluid with a liquid crystal increases the complexity of interactions and results in a greater range of…

软凝聚态物质 · 物理学 2014-03-20 Anne Claire Pawsey , Juho Lintuvuori

It is commonly believed that the transition line separating a liquid and a solid cannot be interrupted by a critical point. This opinion is based on the traditional symmetry argument that an isotropic liquid cannot be continuously…

材料科学 · 物理学 2015-05-13 Måns Elenius , Mikhail Dzugutov

This paper shows by computer simulations that some crystalline systems have curves in their thermodynamic phase diagrams, so-called isomorphs, along which structure and dynamics in reduced units are invariant to a good approximation. The…

Discotic colloids give rise to a paradigmatic family of liquid crystals with sound applications in Materials Science. In this paper, Monte Carlo simulations are employed to characterize the low-temperature liquid crystal phase diagram and…

软凝聚态物质 · 物理学 2024-10-29 Alejandro Cuetos and , Bruno Martínez-Haya , José Manuel Romero-Enrique

Disklike molecules with aromatic cores spontaneously stack up in linear columns with high, one-dimensional charge carrier mobilities along the columnar axes making them prominent model systems for functional, self-organized matter. We show…

Liquid crystals formed by acute-angle bent-core (ABC) molecules with a 1,7 naphthalene central core show an intriguing phase behavior with the nematic phase accompanied by poorly understood additional phases. In this work, we characterize…

Systems of soft-core particles interacting via a two-scale potential are studied. The potential is responsible for peaks in the structure factor of the liquid state at two different but comparable length scales, and a similar bimodal…

软凝聚态物质 · 物理学 2015-12-03 A. J. Archer , A. M. Rucklidge , E. Knobloch

We have developed a class of idealized models of chromonic molecules which are miscible in water, but which can form aggregates which in turn organize into lyotropic liquid crystal (LC) phases. By carrying out Monte Carlo simulation in a…

统计力学 · 物理学 2007-05-23 Prabal K. Maiti , Yves Lansac , Matthew A. Glaser , Noel A. Clark

Using a phase field crystal model we study the structure and dynamics of a drop of colloidal suspension during evaporation of the solvent. We model an experimental system where contact line pinning of the drop on the substrate is…

软凝聚态物质 · 物理学 2012-09-06 Nirmalendu Ganai , Arnab Saha , Surajit Sengupta
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