text
stringlengths
89
2.49k
category
stringclasses
19 values
Influence of Confinement on Dynamical Heterogeneities in Dense Colloidal Samples: We study a dense colloidal suspension confined between two quasiparallel glass plates as a model system for a supercooled liquid in confined geometries. We directly observe the three-dimensional Brownian motion of the colloidal particle...
cond-mat_soft
Criterion for extensional necking instability in polymeric fluids: We study the linear instability with respect to necking of a filament of polymeric fluid undergoing uniaxial extension. Contrary to the widely discussed Considere criterion, we find the onset of instability to relate closely to the onset of downward cur...
cond-mat_soft
Heat Transfer between Graphene and Amorphous SiO2: We study the heat transfer between graphene and amorphous SiO2. We include both the heat transfer from the area of real contact, and between the surfaces in the non-contact region. We consider the radiative heat transfer associated with the evanescent electromagnetic w...
cond-mat_soft
Molecular Dynamics Simulation of Apolipoprotein E3 Lipid Nanodiscs: Nanodiscs are binary discoidal complexes of a phospholipid bilayer circumscribed by belt-like helical scaffold proteins. Using coarse-grained and all-atom molecular dynamics simulations, we explore the stability, size, and structure of nanodiscs formed...
cond-mat_soft
Phase Separation and Ripening in a Viscoelastic Gel: The process of phase separation in elastic solids and viscous fluids is of fundamental importance to the stability and function of soft materials. We explore the dynamics of phase separation and domain growth in a viscoelastic material such as a polymer gel. Using an...
cond-mat_soft
Steady state cyclic behaviour of a half-plane contact in partial slip subject to varying normal load, moment, shear load, and moderate differential bulk tension: A new solution for a general half-plane contact in the steady state is presented. The contacting bodies are subject to a set of constant loads - normal fo...
cond-mat_soft
Strong coupling electrostatics for randomly charged surfaces: Antifragility and effective interactions: We study the effective interaction mediated by strongly coupled Coulomb fluids between dielectric surfaces carrying quenched, random monopolar charges with equal mean and variance, both when the Coulomb fluid consi...
cond-mat_soft
Free-energy functional for freezing transitions: Hard sphere systems freezing into crystalline and amorphous structures: A free-energy functional that contains both the symmetry conserved and symmetry broken parts of the direct pair correlation function has been used to investigate the freezing of a system of hard sp...
cond-mat_soft
Mobility in immersed granular materials upon cyclic loading: We study the mobility of objects embedded in an immersed granular packing and subjected to cyclic loadings. In this aim, we conducted experiments using glass beads immersed in water and a horizontal plate subjected to a cyclic uplift force. Tests performed at...
cond-mat_soft
Propagating compaction bands in confined compression of snow: Experiment and Modelling: We show that the plastic deformation of snow under uniaxial compression is characterized by complex spatio-temporal strain localization phenomena. Deformation is characterized by repeated nucleation and propagation of compaction b...
cond-mat_soft
Low-Temperature and High-Pressure Induced Swelling of a Hydrophobic Polymer-Chain in Aqueous Solution: We report molecular dynamics simulations of a hydrophobic polymer-chain in aqueous solution between $260 {K}$ and $420 {K}$ at pressures of $1 {bar}$, $3000 {bar}$, and $4500 {bar}$. The simulations reveal a hydroph...
cond-mat_soft
Soft particles at liquid interfaces: From molecular particle architecture to collective phase behavior: Soft particles such as microgels and core-shell particles can undergo significant and anisotropic deformations when adsorbed to a liquid interface. This, in turn, leads to a complex phase behavior upon compression....
cond-mat_soft
Arches and contact forces in a granular pile: Assemblies of granular particles mechanically stable under their own weight contain arches. These are structural units identified as sets of mutually stable grains. It is generally assumed that these arches shield the weight above them and should bear most of the stress in ...
cond-mat_soft
Anomalous Diffusion in a Monolayer of Lightweight Spheres Fluidized in Airflow: This paper presents statistical analyses of random motions in a single layer of fluidized lightweight spherical particles. Foam polystyrene spheres were driven by an upward airflow through the sieve mesh, and their two-dimensional motion ...
cond-mat_soft
Novel Experimentally Observed Phenomena in Soft Matter: Soft materials such as colloidal suspensions, polymer solutions and liquid crystals are constituted by mesoscopic entities held together by weak forces. Their mechanical moduli are several orders of magnitude lower than those of atomic solids. The application of s...
cond-mat_soft
Pickering emulsions stabilized by oppositely charged colloids: stability and pattern formation: Binary mixture of oppositely charged of colloids can be used to stabilize water-in-oil or oil-in-water emulsions. A Monte Carlo simulation study to address the effect of charge ratio of colloids on the stability of Pickeri...
cond-mat_soft
Coarse-grain Molecular Dynamics Study of Fullerene Transport across a Cell Membrane: The study of the ability of drug molecules to enter cells through the membrane is of vital importance in the field of drug delivery. In cases where the transport of the drug molecules through the membrane is not easily accomplishable...
cond-mat_soft
Particle Size Effects in Flow-Stabilized Solids: Flow-stabilized solids are a class of fragile matter that forms when a dense suspension of colloids accumulates against a semi-permeable barrier, for flow rates above a critical value. In order to probe the effect of particle size on the formation of these solids, we per...
cond-mat_soft
Pressure and Flow of Exponentially Self-Correlated Active Particles: Microscopic swimming particles, which dissipate energy to execute persistent directed motion, are a classic example of a non-equilibrium system. We investigate the non-interacting Ornstein--Uhlenbeck Particle (OUP), which is propelled through a viscou...
cond-mat_soft
Cyclic annealing as an iterated random map: Disordered magnets, martensitic mixed crystals, and glassy solids can be irreversibly deformed by subjecting them to external deformation. The deformation produces a smooth, reversible response punctuated by abrupt relaxation "glitches". Under appropriate repeated forward and...
cond-mat_soft
Coarse Grained Computations for a Micellar System: We establish, through coarse-grained computation, a connection between traditional, continuum numerical algorithms (initial value problems as well as fixed point algorithms) and atomistic simulations of the Larson model of micelle formation. The procedure hinges on the...
cond-mat_soft
Tricritical behavior of soft nematic elastomers: We propose a lattice statistical model to investigate the phase diagrams and the soft responses of nematic liquid-crystal elastomers. Using suitably scaled infinite-range interactions, we obtain exact self-consistent equations for the tensor components of the nematic ord...
cond-mat_soft
Coarse-grain Molecular Dynamics Study of Fullerene Transport across a Cell Membrane: The study of the ability of drug molecules to enter cells through the membrane is of vital importance in the field of drug delivery. In cases where the transport of the drug molecules through the membrane is not easily accomplishable...
cond-mat_soft
Dumb-bell swimmers: We investigate the way in which oscillating dumb-bells, a simple microscopic model of apolar swimmers, move at low Reynold's number. In accordance with Purcell's Scallop Theorem a single dumb-bell cannot swim because its stroke is reciprocal in time. However the motion of two or more dumb-bells, wit...
cond-mat_soft
Dynamics of quasi-static collapse process of a binary granular column: The dynamical behavior of the column that made up binary granular beads is investigated systematically by tracking the displacement of particles in the collapse process. An experimental setup is first devised to control the quasi-static collapse of ...
cond-mat_soft
Tensile Fracture of Welded Polymer Interfaces: Miscibility, Entanglements and Crazing: Large-scale molecular simulations are performed to investigate tensile failure of polymer interfaces as a function of welding time $t$. Changes in the tensile stress, mode of failure and interfacial fracture energy $G_I$ are correl...
cond-mat_soft
Tension dynamics in semiflexible polymers. Part II: Scaling solutions and applications: In Part I of this contribution, a systematic coarse-grained description of the dynamics of a weakly-bending semiflexible polymer was developed. Here, we discuss analytical solutions of the established deterministic partial integro...
cond-mat_soft
Nonadditive Interactions Unlock Small-Particle Mobility in Binary Colloidal Monolayers: We examine the organization and dynamics of binary colloidal monolayers composed of micron-scale silica particles interspersed with smaller-diameter silica particles that serve as minority component impurities. These binary monola...
cond-mat_soft
Vibrations of Jammed Disk Packings with Hertzian Interactions: Contact breaking and Hertzian interactions between grains can both give rise to nonlinear vibrational response of static granular packings. We perform molecular dynamics simulations at constant energy in 2D of frictionless bidisperse disks that interact via...
cond-mat_soft
Confinement Effects on Phase Behavior of Soft Matter Systems: When systems that can undergo phase separation between two coexisting phases in the bulk are confined in thin film geometry between parallel walls, the phase behavior can be profoundly modified. These phenomena shall be described and exemplified by computer ...
cond-mat_soft
A simple analytical formula for the free-energy of ligand-receptor mediated interactions: Recently \1, we presented a general theory for calculat- ing the strength and properties of colloidal interactions mediated by ligand-receptor bonds (such as those that bind DNA-coated colloids). In this communication, we derive...
cond-mat_soft
Vibrational lifetimes and viscoelastic properties of ultrastable glasses: Amorphous solids are viscoelastic. They dissipate energy when deformed at finite rate and finite temperature. We here use analytic theory and molecular simulations to demonstrate that linear viscoelastic dissipation can be directly related to the...
cond-mat_soft
Programming complex shapes in thin nematic elastomer and glass sheets: Nematic elastomers and glasses are solids that display spontaneous distortion under external stimuli. Recent advances in the synthesis of sheets with controlled heterogeneities have enabled their actuation into non-trivial shapes with unprecedented ...
cond-mat_soft
Effect of particle exchange on the glass transition of binary hard spheres: We investigate the replica theory of the liquid-glass transition for a binary mixture of large and small additive hard spheres. We consider two different ans\"atze for this problem: the frozen glass ansatz (FGA) in whichs the exchange of larg...
cond-mat_soft
Quasicrystal vs Glass Transition: comparison structural and dynamical properties: Quasicrystals are solid structures with symmetry forbidden by crystallographic rules. Because of this some structural characteristics of quasicrystals, for instance, radial distribution function, can look similar to the ones of amorphou...
cond-mat_soft
Perspective: Atomistic Simulations of Water and Aqueous Systems with Machine Learning Potentials: As the most important solvent, water has been at the center of interest since the advent of computer simulations. While early molecular dynamics and Monte Carlo simulations had to make use of simple model potentials to d...
cond-mat_soft
Segregation forces in dense granular flows: Closing the gap from single intruders to mixtures: Using simulations and a virtual-spring-based approach, we measure the segregation force, Fseg, over a range of size-bidisperse mixture concentrations, particle size ratios, and shear rates to develop a model for Fseg that e...
cond-mat_soft
A Percolation Model of Diagenesis: The restructuring process of diagenesis in the sedimentary rocks is studied using a percolation type model. The cementation and dissolution processes are modeled by the culling of occupied sites in rarefied and growth of vacant sites in dense environments. Starting from sub-critical s...
cond-mat_soft
Large-scale critical behavior of the rippling phase transition for graphene membranes: We analyze the spontaneous rippling of graphene membranes as function of the coupling between lattice deformations and electrons. We numerically study a model of an elastic membrane coupled to Dirac fermions. We identify a phase ...
cond-mat_soft
Assembly and speed control in ion exchange based modular phoretic micro-swimmers: We report an experimental study on ion-exchange based modular micro-swimmers in low-salt water. Cationic ion-exchange particles and passive cargo particles assemble into self-propelling complexes, showing self-propulsion at speeds of se...
cond-mat_soft
Liquid dynamics in partially crystalline glycerol: We present a dielectric study on the dynamics of supercooled glycerol during crystallization. We explore the transformation into a solid phase in real time by monitoring the temporal evolution of the amplitude of the dielectric signal. Neither the initial nucleation or...
cond-mat_soft
Cluster and reentrant anomalies of nearly Gaussian core particles: We study through integral equation theory and numerical simulations the structure and dynamics of fluids composed of ultrasoft, nearly Gaussian particles. Namely, we explore the fluid phase diagram of a model in which particles interact via the generali...
cond-mat_soft
Kinetics of Loop Formation in Polymer Chains: We investigate the kinetics of loop formation in flexible ideal polymer chains (Rouse model), and polymers in good and poor solvents. We show for the Rouse model, using a modification of the theory of Szabo, Schulten, and Schulten, that the time scale for cyclization is $\t...
cond-mat_soft
Spontaneous knotting and unknotting of flexible linear polymers: equilibrium and kinetic aspects: We report on a computational study of the statics and dynamics of long flexible linear polymers that spontaneously knot and unknot. Specifically, the equilibrium self-entanglement properties, such as the knotting probabi...
cond-mat_soft
Electrostatic Interactions in Strongly-Coupled Soft Matter: Charged soft-matter systems--such as colloidal dispersions and charged polymers--are dominated by attractive forces between constituent like-charged particles when neutralizing counterions of high charge valency are introduced. Such counter-intuitive effects i...
cond-mat_soft
Relation between the alpha-relaxation and the Johari-Goldstein Beta-relaxation of a component in miscible blends of two glass-formers: It is well known that the \alpha-relaxation of each component in a miscible mixtures of two glass-formers has its own dynamics, which change with the composition of the blend. Lesser ...
cond-mat_soft
Anomalous Thermomechanical Properties of a Self-propelled Colloidal Fluid: We use numerical simulations to compute the equation of state of a suspension of spherical, self-propelled nanoparticles. We study in detail the effect of excluded volume interactions and confinement as a function of the system temperature, co...
cond-mat_soft
Generating multi-chain configurations of an inhomogeneous melt from the knowledge of single-chain properties: Mean-field techniques provide a rather accurate description of single-chain conformations in spatially inhomogeneous polymer systems containing interfaces or surfaces. Intermolecular correlations, however, ar...
cond-mat_soft
Coarse-grained modeling of polymers with end-on and side-on liquid crystal moieties: effect of architecture: Mesogens, which are typically stiff rodlike or disklike molecules, are able to self-organize into liquid crystal (LC) phases in a certain temperature range. Such mesogens, or LC groups, can be attached to poly...
cond-mat_soft
On the thickness of the double layer in ionic liquids: In this study, we examined the thickness of the electrical double layer (EDL) in ionic liquids using density functional theory (DFT) calculations and molecular dynamics (MD) simulations. We focused on the BF4- anion adsorption from 1-ethyl-3-methylimidazolium tetra...
cond-mat_soft
In Situ Ion Induced Gelation of Colloidal Dispersion of Laponite: Relating Microscopic Interactions to Macroscopic Behavior: Aqueous dispersion of Laponite, when exposed to carbon dioxide environment leads to in situ inducement of magnesium and lithium ions, which is, however absent when dispersion is exposed to air....
cond-mat_soft
Ordering kinetics in active polar fluid: We model the active polar fluid as a collection of orientable objects supplied with active stresses and momentum damping coming from the viscosity of bulk fluid medium. The growth kinetics of local orientation field is studied. The effect of active fluid is contractile or extens...
cond-mat_soft
A model for the atomic-scale structure of a dense, nonequilibrium fluid: the homogeneous cooling state of granular fluids: It is shown that the equilibrium Generalized Mean Spherical Model of fluid structure may be extended to nonequilibrium states with equation of state information used in equilibrium replaced by an...
cond-mat_soft
Viscoelasticity of reversibly crosslinked networks of semiflexible polymers: We present a theoretical framework for the linear and nonlinear visco-elastic properties of reversibly crosslinked networks of semiflexible polymers. In contrast to affine models where network strain couples to the polymer end-to-end distanc...
cond-mat_soft
An alternative scenario for the formation of specialized protein nano-domains (cluster phases) in biomembranes: We discuss a realistic scenario, accounting for the existence of sub-micrometric protein domains in cell membranes. At the biological level, such membrane domains have been shown to be specialized, in order...
cond-mat_soft
Entropy and Barrier-Hopping Determine Conformational Viscoelasticity in Single Biomolecules: Biological macromolecules have complex and non-trivial energy landscapes, endowing them a unique conformational adaptability and diversity in function. Hence, understanding the processes of elasticity and dissipation at the n...
cond-mat_soft
Unzipping of a double-stranded block copolymer DNA by a periodic force: Using Monte Carlo simulations, we study the hysteresis in unzipping of a double stranded block copolymer DNA with $-A_n B_n-$ repeat units. Here $A$ and $B$ represent two different types of base pairs having two- and three-bonds, respectively, and ...
cond-mat_soft
Effect of total and pair configurational entropy in determining dynamics of supercooled liquids over a range of densities: In this paper, we present a study of supercooled liquids interacting with the Lennard Jones (LJ) potential and the corresponding purely repulsive (Weeks-Chandler-Andersen or WCA) potential, over ...
cond-mat_soft
Two-State Folding, Folding through Intermediates, and Metastability in a Minimalistic Hydrophobic-Polar Model for Proteins: Within the frame of an effective, coarse-grained hydrophobic-polar protein model, we employ multicanonical Monte Carlo simulations to investigate free-energy landscapes and folding channels of e...
cond-mat_soft
Growing timescales and lengthscales characterizing vibrations of amorphous solids: Low-temperature properties of crystalline solids can be understood using harmonic perturbations around a perfect lattice, as in Debye's theory. Low-temperature properties of amorphous solids, however, strongly depart from such descript...
cond-mat_soft
Active colloidal propulsion over a crystalline surface: We study both experimentally and theoretically the dynamics of chemically self-propelled Janus colloids moving atop a two-dimensional crystalline surface. The surface is a hexagonally close-packed monolayer of colloidal particles of the same size as the mobile one...
cond-mat_soft
Simulation of a two-dimensional model for colloids in a uniaxial electric field: We perform Monte Carlo simulations of a simplified two-dimensional model for colloidal hard spheres in an external uniaxial AC electric field. Experimentally, the external field induces dipole moments in the colloidal particles, which in...
cond-mat_soft
Geometric Mechanics of Curved Crease Origami: Folding a sheet of paper along a curve can lead to structures seen in decorative art and utilitarian packing boxes. Here we present a theory for the simplest such structure: an annular circular strip that is folded along a central circular curve to form a three-dimensional ...
cond-mat_soft
Strong dynamical effects during stick-slip adhesive peeling: We consider the classical problem of the stick-slip dynamics observed when peeling a roller adhesive tape at a constant velocity. From fast imaging recordings, we extract the dependencies of the stick and slip phases durations with the imposed peeling velocit...
cond-mat_soft
Dissipation induced transitions in two dimensional elastic membranes: Stochastic thermodynamics provides a useful set of tools to analyze and constrain the behavior of far from equilibrium systems. In this paper, we report an application of ideas from stochastic thermodynamics to the problem of membrane growth. Non-equ...
cond-mat_soft
Structural and dynamical features of multiple metastable glassy states in a colloidal system with competing interactions: Systems in which a short-ranged attraction and long-ranged repulsion compete are intrinsically frustrated, leading their structure and dynamics to be dominated either by mesoscopic order or by met...
cond-mat_soft
Snapping elastic disks as microswimmers: swimming at low Reynolds numbers by shape hysteresis: We illustrate a concept for shape-changing microswimmers, which exploits the hysteresis of a shape transition of an elastic object, by an elastic disk undergoing cyclic localized swelling. Driving the control parameter of a...
cond-mat_soft
A soft departure from jamming: the compaction of deformable granular matter under high pressures: The high-pressure compaction of three dimensional granular packings is simulated using a bonded particle model (BPM) to capture linear elastic deformation. In the model, grains are represented by a collection of point pa...
cond-mat_soft
Connectivity of the Hexagonal, Cubic, and Isotropic Phases of the C$_{12}$EO$_6$/H$_2$O Lyotropic Mixture Investigated by Tracer Diffusion and X-ray Scattering: The connectivity of the hydrophobic medium in the nonionic binary system C$_{12}$EO$_6$/H$_2$O is studied by monitoring the diffusion constants of tracer m...
cond-mat_soft
Exact curvilinear diffusion coefficients in the repton model: The Rubinstein-Duke or repton model is one of the simplest lattice model of reptation for the diffusion of a polymer in a gel or a melt. Recently, a slightly modified model with hardcore interactions between the reptons has been introduced. The curvilinear d...
cond-mat_soft
Controlling cell motion and microscale flow with polarized light fields: We investigate how light polarization affects the motion of photo-responsive algae, \textit{Euglena gracilis}. In a uniformly polarized field, cells swim approximately perpendicular to the polarization direction and form a nematic state with zero ...
cond-mat_soft
Note: Relaxation time below jamming: Like other critical phenomena, the jamming transition accompanies the divergence of the relaxation time $\tau$. A recent numerical study of frictionless spherical particles proves that $\tau$ is inversely proportional to the lowest non-zero eigenvalue $\lambda_1$ of the dynamical ma...
cond-mat_soft
Ludwig: A parallel Lattice-Boltzmann code for complex fluids: This paper describes `Ludwig', a versatile code for the simulation of Lattice-Boltzmann (LB) models in 3-D on cubic lattices. In fact `Ludwig' is not a single code, but a set of codes that share certain common routines, such as I/O and communications. If `Lu...
cond-mat_soft
Continuum mechanics at nanoscale. A tool to study trees' watering and recovery: The cohesion-tension theory expounds the crude sap ascent thanks to the negative pressure generated by evaporation of water from leaves. Nevertheless, trees pose multiple challenges and seem to live in unphysical conditions: the negative ...
cond-mat_soft
Linear and angular motion of self-diffusiophoretic Janus particles: We theoretically study the active motion of self-diffusiophoretic Janus particles (JPs) using the Onsager-Casimir reciprocal relations. The linear and angular velocity of a single JP are shown to respectively result from a coupling of electrochemical f...
cond-mat_soft
Autonomous elastic microswimmer: A model of an autonomous three-sphere microswimmer is proposed by implementing a coupling effect between the two natural lengths of an elastic microswimmer. Such a coupling mechanism is motivated by the previous models for synchronization phenomena in coupled oscillator systems. We nume...
cond-mat_soft
Active actions: effective field theory for active nematics: Active matter consumes energy from the environment and transforms it into mechanical work. Notable examples from biology include cell division, bacterial swarms, and muscle contraction. In this work, we investigate the nature of active matter systems using the...
cond-mat_soft
Importance of hydrodynamic shielding for the dynamic behavior of short polyelectrolyte chains: The dynamic behavior of polyelectrolyte chains in the oligomer range is investigated with coarse-grained molecular dynamics simulation and compared to data obtained by two different experimental methods, namely capillary el...
cond-mat_soft
Flow-Induced Shift of the Donnan Equilibrium for Ultra-Sensitive Mass Transport Measurement Through a Single Nanochannel: Despite mass flow is arguably the most elementary transport associated to nanofluidics, its measurement still constitutes a significant bottleneck for the development of this promising field. Here...
cond-mat_soft
Universality of Osmotic Equation of State in Star Polymer Solutions: We experimentally measure the osmotic pressures of linear polymers and three-, four-, and eight-arm star polymers in a good solvent via membrane osmometry. These results reveal that the osmotic equations of state in the star polymer solutions are univ...
cond-mat_soft
Computational Pipeline to probe NaV1.7 gain-of-functions variants in neuropathic painful syndromes: Applications of machine learning and graph theory techniques to neuroscience have witnessed an increased interest in the last decade due to the large data availability and unprecedented technology developments. Their e...
cond-mat_soft
Theory of small-polaron band conduction in ultrapure organic crystals: We present a novel theory of charge-carrier mobilities in organic molecular crystals of high purity. Our approach is based on Holstein's original concept of small-polaron bands but generalized with respect to the inclusion of nonlocal electron-phono...
cond-mat_soft
Nonlinear Force Propagation during Granular Impact: We experimentally study nonlinear force propagation into granular material during impact from an intruder, and we explain our observations in terms of the nonlinear grain-scale force relation. Using high-speed video and photoelastic particles, we determine the speed a...
cond-mat_soft
Universality and stability phase-diagram of two-dimensional brittle fracture: The two-dimensional oscillatory crack instability, experimentally observed in a class of brittle materials under strongly dynamic conditions, has been recently reproduced by a nonlinear phase-field fracture theory. Here we highlight the uni...
cond-mat_soft
Band-gaps in electrostatically controlled dielectric laminates subjected to incremental shear motions: The thickness vibrations of a finitely deformed infinite periodic laminate made out of two layers of dielectric elastomers is studied. The laminate is pre-stretched by inducing a bias electric field perpendicular th...
cond-mat_soft
Evaluation of bistable systems versus matched filters in detecting bipolar pulse signals: This paper presents a thorough evaluation of a bistable system versus a matched filter in detecting bipolar pulse signals. The detectability of the bistable system can be optimized by adding noise, i.e. the stochastic resonance ...
cond-mat_soft
Array of Bose-Einstein condensates under time-periodic Feshbach-resonance management: The dynamics of a discrete soliton in an array of Bose-Einstein condensates under the action of a periodically time-modulated atomic scattering length (``Feshbach-resonance management, FRM'') is investigated. The cases of both slow ...
cond-mat_soft
Phase-field-crystal model for liquid crystals: Based on static and dynamical density functional theory, a phase-field-crystal model is derived which involves both the translational density and the orientational degree of ordering as well as a local director field. The model exhibits stable isotropic, nematic, smectic A...
cond-mat_soft
Universal scaling for disordered viscoelastic matter II: Collapses, global behavior and spatio-temporal properties: Disordered viscoelastic materials are ubiquitous and exhibit fascinating invariant scaling properties. In a companion article, we have presented comprehensive new results for the critical behavior of th...
cond-mat_soft
Numerical studies of triangulated vesicles with anisotropic membrane inclusions: In this study, we implement the deviatoric curvature model to examine dynamically triangulated surfaces with anisotropic membrane inclusions. The Monte-Carlo numerical scheme is devised to not only minimize the total bending energy of th...
cond-mat_soft
Localized and Delocalized Charge Transport in Single-Wall Carbon-Nanotube Mats: We measured the complex dielectric constant in mats of single-wall carbon-nanotubes between 2.7 K and 300 K up to 0.5 THz. The data are well understood in a Drude approach with a negligible temperature dependence of the plasma frequency (...
cond-mat_soft
The near and far of a pair of magnetic capillary disks: Control on microscopic scales depends critically on our ability to manipulate interactions with different physical fields. The creation of micro-machines therefore requires us to understand how multiple fields, such as surface capillary or electro-magnetic, can be...
cond-mat_soft
Wetting of ferrofluids: phenomena and control: Ferrofluids are liquids exhibiting remarkably strong response to magnetic fields, which leads to fascinating properties useful in various applications. Understanding the wetting properties and spreading of ferrofluids is important for their use in microfluidics and magneti...
cond-mat_soft
Forceless Sadowsky strips are spherical: We show that thin rectangular ribbons, defined as energy-minimising configurations of the Sadowsky functional for narrow developable elastic strips, have a propensity to form spherical shapes in the sense that forceless solutions lie on a sphere. This has implications for ribbon...
cond-mat_soft
Model studies on motion of respiratory droplets driven through a face mask: Face masks are used to intercept respiratory droplets to prevent spreading of air-borne diseases. Designing face masks with better efficiency needs microscopic understanding on how respiratory droplets move through a mask. Here we study a sim...
cond-mat_soft
Statistical Mechanics of Splay Flexoelectricity in Nematic Liquid Crystals: We develop a lattice model for the splay flexoelectric effect in nematic liquid crystals. In this model, each lattice site has a spin representing the local molecular orientation, and the interaction between neighboring spins represents pear-...
cond-mat_soft
Disjoining Pressure and the Film-Height-Dependent Surface Tension of Thin Liquid Films: New Insight from Capillary Wave Fluctuations: In this paper we review simulation and experimental studies of thermal capillary wave fluctuations as an ideal means for probing the underlying disjoining pressure and surface tensions...
cond-mat_soft
Microparticles self-assembly induced by travelling surface acoustic waves: We present an acoustofluidic method based on travelling surface acoustic waves (TSAWs) for the induction of the self-assembly of microparticles inside a microfluidic channel. The particles are trapped above an interdigitated transducer, placed...
cond-mat_soft
Spontaneous sense inversion in helical mesophases: We investigate the pitch sensitivity of cholesteric phases of helicoidal patchy cylinders as a generic model for chiral (bio-)polymers and helix-shaped colloidal rods. The behaviour of the macroscopic cholesteric pitch is studied from microscopic principles by invoking...
cond-mat_soft
Yield drag in a two-dimensional foam flow around a circular obstacle: Effect of liquid fraction: We study the two-dimensional flow of foams around a circular obstacle within a long channel. In experiments, we confine the foam between liquid and glass surfaces. In simulations, we use a deterministic software, the Surf...
cond-mat_soft