Significance Understanding how amorphous solids yield in response to external deformations is crucial both for practical applications and theoretical reasons. Here we show that despite large differences the materials’ microscopic interactions, a degree of universality emerges as there are only two ways which respond deformation: One, typical well-annealed materials, characterized by an abrupt failure with macroscopic stress drop sudden emergence sharp shear bands; other, poorly annealed...

We have carried out a theoretical analysis of the Landau-Ginzburg-Wilson effective field theory classical incommensurate CDW in presence weak quenched disorder. While possibility sharp phase transition and long-range order are precluded such systems, we show that any discrete symmetry breaking aspect charge -- nematicity case unidirectional (stripe) consider explicitly generically survives up to non-zero critical disorder strength. Such "vestigial order", which is subject unambiguous...

The Stokes–Einstein and Stokes–Einstein–Debye relations hold well in nonsupercooled liquids; however, sizeable deviations from the former appear supercooled liquids, leading to a ‘‘decoupling’’ of translational diffusion viscosity reorientational relaxation. We attribute this breakdown existence structured domains liquid.

We study the interplay between hysteresis and equilibrium behavior in capillary condensation of fluids mesoporous disordered materials via a mean-field density functional theory lattice-gas model. The approach reproduces all major features observed experimentally. show that simple van der Waals picture metastability fails due to appearance complex free-energy landscape with large number metastable states. In particular, can occur both without an underlying transition, thermodynamic...

We use recently introduced three-point dynamic susceptibilities to obtain an experimental determination of the temperature evolution number molecules Ncorr that are dynamically correlated during structural relaxation supercooled liquids. first discuss in detail physical content functions relate sensitivity averaged two-time dynamics external control parameters (such as or density), well their connection more standard four-point susceptibility associated with dynamical heterogeneities. then...

We show that the density and temperature dependences of α-relaxation time several glass-forming polymers can be described through a single scaling variable X = e(ρ)/T, where e(ρ) is well fitted by power law ρx, x being species-specific parameter. This implies "fragility" an intrinsic, density-independent property glass-former characterizing its super-Arrhenius slowing-down relaxations, it leads us to propose modification celebrated Angell plot.

It has long been appreciated that both temperature and density play roles in determining the extremely super-Arrhenius, low-temperature behavior of viscosity α-relaxation times characterize fragile supercooled liquids. But what not generally appreciated, we believe have established (by focusing on a model-free analysis terms density, rather than upon pressure) is over range densities temperatures spanned by experiments carried out at 1 atm pressure, dominant control variable. This...

We study the random sequential adsorption (RSA) of unoriented anisotropic objects onto a flat uniform surface, for various shapes (spherocylinders, ellipses, rectangles, and needles) elongations. The asymptotic approach to jamming limit is shown follow expected algebraic behavior, θ(∞)−θ(t)∼t−1/3, where θ surface coverage; this result valid all elongations, provided have nonzero proper area. In very small long-time behavior consists two successive critical regimes: first characterized by...

We study, by an adiabatic dynamical simulation technique, a mixed classical-quantum model for strongly H-bonded complexes in polar solvents. The solvent influence on the proton dynamics is interpreted terms of protonic polarization effect, usually referred to as Zundel polarization. relation solvent-induced transfer and consequences broadening infrared absorption spectrum are discussed. show that increasing solvent-complex coupling, system passes from ‘‘oscillatory’’ ‘‘reactive’’ behavior,...

We study the role of attractive intermolecular forces in viscous regime a simple glass-forming liquid by using computer simulations. To this end, we compare structure and dynamics standard Lennard-Jones model with without tail interaction potentials. The slowing down two systems is found to be quantitatively qualitatively different over broad density range, whereas static pair correlations remain close. common assumption that behavior dense nonassociated liquids determined short-ranged...

Using the replica method, we derive thermodynamic relations for a fluid in equilibrium with quenched porous matrix. In particular, appropriate Gibbs–Duhem equation is obtained as well equivalence between grand canonical and ensembles. The exact compressiblity virial equations are derived. Whereas compressibility remains direct practical way to obtain adsorption isotherm, involves terms which do not relate easily properties of fluid/matrix system. This explains inconsistency previous...

In an effort to assess the applicability of various competing theoretical models, we have examined temperature dependence viscosity \ensuremath{\eta}(T) and \ensuremath{\alpha}-relaxation times a wide variety supercooled liquids. The overall best fits over entire range above glass-transition for all diverse liquids investigated are given by expression ln[\ensuremath{\eta}(T)/${\mathrm{\ensuremath{\eta}}}_{\mathrm{\ensuremath{\infty}}}$]...

We present a consistent picture of the respective role density (ρ) and temperature (T) in viscous slowing down glassforming liquids polymers. Specifically, based part upon new analysis simulation experimental data on liquid ortho-terphenyl, we conclude that zeroth-order description approach to glass transition (in range experimentally accessible pressures) should be formulated terms temperature-driven super-Arrhenius activated behavior rather than density-driven congestion or jamming...

We study the geometrical frustration scenario of glass formation for simple hard-sphere models. find that dual picture in terms defects brings little insight and no theoretical simplification understanding slowing down relaxation, because strong characterizing these systems. The possibility a growing static length is furthermore found to be physically irrelevant regime accessible computer simulations.

We provide a resolution of one the long-standing puzzles in theory disordered systems. By reformulating functional renormalization group for critical behavior random field Ising model superfield formalism, we are able to follow associated supersymmetry and its spontaneous breaking along flow. Breaking is shown occur below dimension ${d}_{\mathrm{DR}}\ensuremath{\simeq}5.1$ leads breakdown ``dimensional reduction'' property. compute exponents as function give evidence that scaling described...

We show that, in the equilibrium phase of glass-forming hard-sphere fluids three dimensions, static length scales tentatively associated with dynamical slowdown and characterizing spatial heterogeneities dynamics unambiguously decorrelate. The former grow at a much slower rate than latter when density increases. This observation is valid for range that accessible to computer simulations, which roughly corresponds colloidal experiments. also find this same range, no one-to-one correspondence...

It was recently discovered that SWAP, a Monte Carlo algorithm involves the exchange of pairs particles differing diameters, can dramatically accelerate equilibration simulated supercooled liquids in regimes where normal dynamics is glassy. This spectacular effect subsequently interpreted as direct evidence against static, cooperative explanation glass transition such one offered by random first-order (RFOT) theory. We explain speedup induced SWAP within framework RFOT suggest efficiency...

We present the calculation of phase diagrams for fluids in disordered porous materials using theories based on replica symmetric Ornstein–Zernike equations. consider molecular models which medium is described by quenched configurations spheres and fluid-fluid matrix intermolecular potentials are sum a hard-sphere core an attractive tail. Such account combined effect confinement, wetting, disorder that expected to be important describe recent experimental observations. use method derive...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvent-induced proton transfer in strongly hydrogen-bonded complexes: an adiabatic dynamical simulation studyD. Borgis, G. Tarjus, and H. AzzouzCite this: J. Phys. Chem. 1992, 96, 8, 3188–3191Publication Date (Print):April 1, 1992Publication History Published online1 May 2002Published inissue 1 April 1992https://pubs.acs.org/doi/10.1021/j100187a003https://doi.org/10.1021/j100187a003research-articleACS PublicationsRequest reuse permissionsArticle...