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相关论文: Phase behavior of mixtures of hard ellipses: A sca…

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We examine the fluid phase behaviour of the binary mixture of hard superellipses using the scaled particle theory The superellipse is a general two dimensional convex object which can be tuned between circular and rectangular shapes…

软凝聚态物质 · 物理学 2020-09-02 Sakine Mizani , Peter Gurin , Roohollah Aliabadi , Hamdollah Salehi , Szabolcs Varga

We formulate the scaled particle theory for a general mixture of hard isosceles triangles and calculate different phase diagrams for the one-component fluid and for certain binary mixtures. The fluid of hard triangles exhibits a complex…

软凝聚态物质 · 物理学 2018-05-16 Yuri Martinez-Raton , Ariel Diaz-De Armas , Enrique Velasco

Shape anisotropy of colloidal nanoparticles has emerged as an important design variable for engineering assemblies with targeted structure and properties. In particular, a number of polyhedral nanoparticles have been shown to exhibit a rich…

软凝聚态物质 · 物理学 2013-09-13 Mihir R. Khadilkar , Umang Agarwal , Fernando A. Escobedo

We present an event-driven molecular dynamics study of glass formation in two-dimensional binary mixtures composed of hard disks and hard ellipses, where both types of particles have the same area. We demonstrate that characteristic…

软凝聚态物质 · 物理学 2015-05-27 Wen-Sheng Xu , Xiaozheng Duan , Zhao-Yan Sun , Li-Jia An

The density profiles and corresponding order parameters of the hard ellipsoids confined between two hard walls and also in contact with a single hard wall are studied using the density functional theory. The Hyper-Netted Chain (HNC)…

软凝聚态物质 · 物理学 2017-12-12 M. Moradi , B. Binaei Ghotbabadi , R. Aliabadi

We report the phase diagram of two-dimensional hard ellipses as obtained from replica exchange Monte Carlo simulations. The replica exchange is implemented by expanding the isobaric ensemble in pressure. The phase diagram shows four…

软凝聚态物质 · 物理学 2015-06-19 Gustavo Bautista-Carbajal , Gerardo Odriozola

Hard models for particle interactions have played a crucial role in the understanding of the structure of condensed matter. In particular, they help to explain the formation of oriented phases in liquids made of anisotropic molecules or…

软凝聚态物质 · 物理学 2015-06-22 Luis Mederos , Enrique Velasco , Yuri Martinez-Raton

We computationally studied the phase behavior and dynamics of binary mixtures of active particles, where each 'species' had distinct activities leading to distinct velocities, fast and slow. We obtained phase diagrams demonstrating…

软凝聚态物质 · 物理学 2019-09-09 Thomas Kolb , Daphne Klotsa

We provide an exact mapping between the density functional of a binary mixture and that of the effective one-component fluid in the limit of infinite asymmetry. The fluid of parallel hard cubes is thus mapped onto that of parallel adhesive…

软凝聚态物质 · 物理学 2009-10-31 Yuri Martinez-Raton , Jose A. Cuesta

Scaled particle theory for a binary mixture of hard discorectangles and for a binary mixture of hard rectangles is used to predict possible liquid-crystal demixing scenarios in two dimensions. Through a bifurcation analysis from the…

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

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

A theoretical model of shape-anisometric particles embedded in a cubic lattice is formulated for binary mixtures combining rod-like, plate-like and spherical particles. The model aims at providing a tool for the prediction and…

软凝聚态物质 · 物理学 2011-05-31 Stavros Peroukidis , Alexandros G. Vanakaras , Demetri J. Photinos

Using the Fundamental-Measure Density Functional Theory, we have studied theoretically the phase behavior of extremely confined mixtures of parallel hard squares in slit geometry. The pore width is chosen such that configurations consisting…

软凝聚态物质 · 物理学 2020-01-09 Yuri Martinez-Raton , Enrique Velasco

We review recent work on the phase behaviour of binary charged sphere mixtures as a function of particle concentration and composition. Both size ratios and charge ratios are varied over a wide range. By contrast to hard spheres the long…

Using scaled-particle theory for binary mixtures of two-dimensional hard particles with rotational freedom, we analyse the stability of nematic phases and the demixing phase behaviour of a variety of mixtures, focussing on cases where at…

软凝聚态物质 · 物理学 2009-11-13 D. de las Heras , Y. Martinez-Raton , E. Velasco

We present a new two dimensional model for elliptic (i.e., shape anisotropic) patchy colloids, where the impenetrable core of the particles is decorated on its co-)vertices by Kern-Frenkel type of patches. Using (i) well-documented criteria…

软凝聚态物质 · 物理学 2019-10-02 Susanne Wagner , Gerhard Kahl

We study glass transitions in mixtures of elliptic and circular particles in two dimensions using an orientation-dependent Lennard-Jones potential. Changing anisotropic parameters of the potential, the size ratio, and the concentration, we…

软凝聚态物质 · 物理学 2013-05-21 Kyohei Takae , Akira Onuki

We analyze the sedimentation behavior of a polydisperse two-dimensional liquid-crystal fluid using a local density functional theory based on scaled particle theory. Polydispersity is incorporated through variations in the roundness of hard…

软凝聚态物质 · 物理学 2025-11-11 Tobias Eckert , Daniel de las Heras , Enrique Velasco , Yuri Martínez-Ratón

It has been well established that particulate systems show the jamming transition and critical scaling behaviors associated with it. However, our knowledge is limited to (nearly) monodisperse systems. Recently, a binary mixture of jammed…

软凝聚态物质 · 物理学 2021-05-12 Yusuke Hara , Hideyuki Mizuno , Atsushi Ikeda

We study glass behavior in a mixture of elliptic and circular particles in two dimensions at low temperatures using an orientation-dependent Lennard-Jones potential. The ellipses have a mild aspect ratio ($\sim 1.2$) and tend to align at…

软凝聚态物质 · 物理学 2013-11-01 Kyohei Takae , Akira Onuki
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