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Designing reconfigurable materials based on deformable nanoparticles (NPs) hinges on an understanding of the energetically-favored shapes these NPs can adopt. Using simulations, we show that hollow, deformable patchy NPs tailored with…

Soft Condensed Matter · Physics 2021-01-04 Nicholas E. Brunk , JCS Kadupitiya , Vikram Jadhao

Contents: 1. Introduction 2. Amphiphilic molecules and the phases they form 3. Isolated membranes: the Helfrich hamiltonian 4. Vesicle shapes 5. Shape fluctuations in vesicles 6. Interacting fluid membranes 7. Conclusions A. Differential…

Condensed Matter · Physics 2016-08-31 Luca Peliti

Epitaxial graphene layers were grown on the C-face of 4H- and 6H-SiC using an argon-mediated growth process. Variations in growth temperature and pressure were found to dramatically affect the morphological properties of the layers. The…

Crack formation patterns in laponite gel are known to be strongly affected by DC electric fields. We show that AC fields produce equally remarkable patterns in a radially symmetric set-up. The character of the pattern depends crucially on…

Soft Condensed Matter · Physics 2013-04-23 Tajkera Khatun , Tapati Dutta , Sujata Tarafdar

We show that the ion beam induced incompressible amorphous solid flow in terms of advection transport mechanism leads to the erosion and deposition of atoms at the amorphous/crystalline (a/c) interface resulting in the formation of pattern…

Materials Science · Physics 2014-02-25 Tanuj Kumar , D. C. Agarwal , S. A. Khan , N. P. Lalla , D. Kanjilal

Using computer simulation, we have studied the random sequential adsorption of stiff linear $k$-mers onto a square lattice. Each such particle occupies $k$ adjacent lattice sites. During deposition, the two mutually perpendicular…

Statistical Mechanics · Physics 2021-03-10 Mikhail V. Ulyanov , Yuri Yu. Tarasevich , Andrei V. Eserkepov , Irina V. Grigorieva

We study the behaviour of interacting self-propelled particles, whose self-propulsion speed decreases with their local density. By combining direct simulations of the microscopic model with an analysis of the hydrodynamic equations obtained…

Statistical Mechanics · Physics 2012-06-25 F. D. C. Farrell , J. Tailleur , D. Marenduzzo , M. C. Marchetti

The tendency of amphiphilic molecules to form micelles in aqueous solution is a consequence of the hydrophobic effect. The fundamental difference between micelle assembly and macroscopic phase separation is the stoichiometric constraint…

Soft Condensed Matter · Physics 2007-05-23 Lutz Maibaum , Aaron R. Dinner , David Chandler

We investigate the phase diagram of a two-component associating fluid mixture in the presence of selectively adsorbing substrates. The mixture is characterized by a bulk phase diagram which displays peculiar features such as closed loops of…

Statistical Mechanics · Physics 2009-11-07 J. M. Romero-Enrique , L. F. Rull , U. Marini Bettolo Marconi

A single semiflexible polymer chain folds into a toroidal object under poor solvent conditions. In this study, we examined the morphological change in such a toroidal state as a function of the width and stiffness of the chain together with…

Biological Physics · Physics 2016-09-08 Y. Takenaka , Y. Yoshikawa , Y. Koyama , T. Kanbe , K. Yoshikawa

The adsorbed atoms exhibit tendency to occupy a triangular lattice formed by periodic potential of the underlying crystal surface. Such a lattice is formed by, e.g., a single layer of graphane or the graphite surfaces as well as (111)…

Strongly Correlated Electrons · Physics 2021-05-05 Konrad Jerzy Kapcia

During the intercalation of lithium in layered host materials such as graphite, lithium atoms can move within the plane between two neighboring graphene sheets, but cannot cross the sheets. Repulsive interactions between atoms in different…

Materials Science · Physics 2024-09-06 Antoine Cordoba , Marion Chandesris , Mathis Plapp

Self-assembly into target structures is an efficient material design strategy. Combining analytical calculations and computational techniques of evolutionary and Monte Carlo types, we report about a remarkable structural variability of…

Soft Condensed Matter · Physics 2016-09-28 M. Antlanger , G. Kahl , M. Mazars , L. Samaj , E. Trizac

Impact of a droplet on an undercooled surface is a complex phenomenon as it simultaneously instigates several physical processes that cover a broad spectrum of transport phenomena and phase-transition. Here, we report and explain an…

Fluid Dynamics · Physics 2020-11-04 Pallav Kant , Henrik Müller-Groeling , Detlef Lohse

We investigate the formation of condensates in a binary lattice gas in the presence of chiral interactions. These interactions differ between a given microscopic configuration and its mirror image. We consider a two dimensional lattice gas…

Statistical Mechanics · Physics 2024-09-26 Boyi Wang , Frank Jülicher , Patrick Pietzonka

The properties of organically modified clay minerals determine essentially the quality of polymer-clay nanocomposites. We investigate alkylammonium-micas with different alkyl chain length by molecular dynamics simulation as homogeneous…

Materials Science · Physics 2007-05-23 Hendrik Heinz , Ulrich W. Suter

Based on Brownian Dynamics computer simulations in two dimensions we investigate aggregation scenarios of colloidal particles with directional interactions induced by multiple external fields. To this end we propose a model which allows…

Soft Condensed Matter · Physics 2015-05-08 Florian Kogler , Orlin D. Velev , Carol K. Hall , Sabine H. L. Klapp

The self-assembly of monoacyl lipids in solution is studied employing a model in which the lipid's hydrocarbon tail is described within the Rotational Isomeric State framework and is attached to a simple hydrophilic head. Mean-field theory…

Statistical Mechanics · Physics 2009-10-31 M. Mueller , M. Schick

Graphene is formed on SiC(000-1) surfaces (the so-called C-face of the crystal) by annealing in vacuum, with the resulting films characterized by atomic force microscopy, Auger electron spectroscopy, scanning Auger microscopy and Raman…

Materials Science · Physics 2015-05-13 Luxmi , P. J. Fisher , N. Srivastava , R. M. Feenstra , Yugang Sun , J. Kedzierski , P. Healey , Gong Gu

Self-organization of charged particles on a 2D lattice, subject to an anisotropic Jahn-Teller-type interaction and 3D Coulomb repulsion is investigated. In the mean-field approximation without Coulomb interaction, the system displays a…

Strongly Correlated Electrons · Physics 2008-11-19 T. Mertelj , V. V. Kabanov , J. Miranda , D. Mihailovic