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The effect on the vibrational and thermal properties of gradually interconnected nanoinclusions embedded in an amorphous silicon matrix is studied using MD simulations. The nanoinclusion arrangement ranges from an aligned sphere array to an…

介观与纳米尺度物理 · 物理学 2021-05-10 Paul Desmarchelier , Alice Carré , Konstantinos Termentzidis , Anne Tanguy

We consider a continuum model of active viscoelastic matter, whereby an active nematic liquid-crystal is coupled to a minimal model of polymer dynamics with a viscoelastic relaxation time $\tau_C$. To explore the resulting interplay between…

软凝聚态物质 · 物理学 2016-03-30 E. J. Hemingway , M. E. Cates , S. M. Fielding

We investigate the dynamics of water confined in soft ionic nano-assemblies, an issue critical for a general understanding of the multi-scale structure-function interplay in advanced materials. We focus in particular on hydrated…

材料科学 · 物理学 2017-08-23 Quentin Berrod , Samuel Hanot , Armel Guillermo , Stefano Mossa , Sandrine Lyonnard

Using fully kinetic 3D simulations, the reconnection dynamics of asymmetric current sheets are examined at the Earth's magnetopause. The plasma parameters are selected to model MMS magnetopause diffusion region crossings with guide fields…

等离子体物理 · 物理学 2018-07-04 Ari Le , William Daughton , Obioma Ohia , Li-Jen Chen , Yi-Hsin Liu , Shan Wang , William David Nystrom , Robert Bird

Liquid crystals are synthetic and biological viscoelastic anisotropic soft matter materials that combine liquid fluidity with crystal anisotropy and find use in optical devices, sensor/actuators, lubrication, super-fibers. Frequently…

软凝聚态物质 · 物理学 2013-11-22 Ezequiel R. Soule , Alejandro D. Rey

Translation-invariant low-dimensional systems are known to exhibit anomalous heat transport. However, there are systems, such as the coupled-rotor chain, where translation invariance is satisfied, yet transport remains diffusive. It has…

统计力学 · 物理学 2023-07-12 Piero Olla

We consider anomalous non-Markovian transport of Brownian particles in viscoelastic fluid-like media with very large but finite macroscopic viscosity under the influence of a constant force field F. The viscoelastic properties of the medium…

统计力学 · 物理学 2014-09-24 Igor Goychuk

A theoretical model of electromigrative, diffusive and convectivetransport polymer-gel composites is presented. Bulk properties are derived from the standard electrokinetic model with an impenetrable charged sphere embedded in an…

软凝聚态物质 · 物理学 2007-05-23 Reghan J. Hill

Nanoscale topographic features of solid surfaces can induce complex metastable behavior in colloidal and multiphase systems. Recent studies on single microparticle adsorption at liquid interfaces have reported a crossover from fast…

软凝聚态物质 · 物理学 2018-04-27 Bibin M. Jose , Dhiraj Nandyala , Thomas Cubaud , Carlos E. Colosqui

When an ensemble of particles interact hydrodynamically, they generically display large-scale transient structures such as swirls in sedimenting particles [1], or colloidal strings in sheared suspensions [2]. Understanding these…

软凝聚态物质 · 物理学 2013-01-24 Nicolas Desreumaux , Jean-Baptiste Caussin , Raphael Jeanneret , Eric Lauga , Denis Bartolo

The sliding of non-Newtonian drops down planar surfaces results in a complex, entangled balance between interfacial forces and non linear viscous dissipation, which has been scarcely inspected. In particular, a detailed understanding of the…

软凝聚态物质 · 物理学 2017-03-31 Silvia Varagnolo , Daniele Filippi , Giampaolo Mistura , Matteo Pierno , Mauro Sbragaglia

Achieving control and tunability of lyotropic materials has been a long-standing goal of liquid crystal research. Here we show that the elasticity of a liquid crystal system consisting of a dense suspension of semiflexible biopolymers can…

软凝聚态物质 · 物理学 2018-01-12 Rui Zhang , Nitin Kumar , Jennifer Ross , Margaret L. Gardel , Juan J. de Pablo

In this study, we investigate the transition between the Newtonian and the viscoelastic regimes during the pinch-off of droplets of dilute polymer solutions and discuss its link to the coil-stretch transition. The detachment of a drop from…

软凝聚态物质 · 物理学 2025-03-18 Sreeram Rajesh , Virgile Thiévenaz , Alban Sauret

Under compressive creep, visco-plastic solids experiencing internal mass transfer processes have been recently proposed to accommodate singular cnoidal wave solutions, as material instabilities at the stationary wave limit. These…

计算物理 · 物理学 2020-08-05 Roberto J. Cier , Thomas Poulet , Sergio Rojas , Victor M. Calo , Manolis Veveakis

We study diffusion of heat in an aqueous suspension of disc shaped nanoparticles of Laponite, which has finite elasticity and paste-like consistency, by using the Mach-Zehnder interferometer. We estimate the thermal diffusivity of the…

软凝聚态物质 · 物理学 2013-06-25 Susheel S. Bhandari , K. Muralidhar , Yogesh M Joshi

Non-Newtonian fluids have a viscosity that varies with applied stress. Elastoviscoplastic fluids, the elastic, viscous and plastic properties of which are interconnected in a non-trivial way, belong to this category. We have performed…

流体动力学 · 物理学 2023-08-02 Mohamed S. Abdelgawad , Ianto Cannon , Marco E. Rosti

Hypothesis: Slippery Omniphobic Covalently Attached Liquids (SOCAL) have been proposed for making omnirepellent thin films of self-assembled dimethylsiloxane polymer brushes grafted from silica surfaces. Smooth and flat at very small scale,…

软凝聚态物质 · 物理学 2023-11-21 M. Callau , C. Fajolles , J. Leroy , E. Verneuil , Patrick Guenoun

Mechanical deformation of nanopillars displays features that are distinctly different from the bulk behavior of single crystals: Yield strength increases with decreasing size and plastic deformation comes together with strain bursts or/and…

材料科学 · 物理学 2016-06-06 Stefanos Papanikolaou , Hengxu Song , Erik Van der Giessen

This article presents a numerical simulation of solvent diffusion in transition metal dichalcogenide based nanomaterials during solvothermal reaction, leading to layer exfoliation and, consequently, a reduction in the average nanoparticle…

材料科学 · 物理学 2026-04-14 Geetika Sahu

The silo discharge process is studied by molecular dynamics simulations. The development of the velocity profile and the probability density function for the displacements in the horizontal and vertical axis are obtained. The PDFs obtained…

统计力学 · 物理学 2009-11-11 R. Arevalo , A. Garcimartin , D. Maza