Network formation and relaxation dynamics in a new model for colloidal gelation (2007)
We investigate the gel formation from the equilibrium sol phase in a simple model that has the characteristics of (colloidal) gel-forming systems at a finite temperature. At low volume fraction and...
Length scale dependent relaxation in colloidal gels (2005)
We use molecular dynamics computer simulations to investigate the relaxation dynamics of a simple model for a colloidal gel at a low volume fraction. We find that due to the presence of the open...
Democratic particle motion for meta-basin transitions in simple glass-formers (2005)
Appignanesi, G. A., Fris, J. A. Rodriguez, Montani, R. A., Kob, W.
We use molecular dynamics computer simulations to investigate the local motion of the particles in a supercooled simple liquid. Using the concept of the distance matrix we find that the...
Moreno, A. J., Sciortino, F., Kob, W.
We use molecular-dynamics computer simulations to study the translational and reorientational dynamics of a glass-forming liquid of dumbbells. For sufficiently elongated molecules the standard strong...
Channel Formation and Intermediate Range Order in Sodium Silicate Melts and Glasses (2004)
Meyer, A., Horbach, J., Kob, W., Kargl, F., Schober, H.
We use inelastic neutron scattering and molecular dynamics simulation to investigate the interplay between the structure and the fast sodium ion diffusion in various sodium silicates. With increasing...
Ispas, S., Zotov, N., De Wispelaere, S., Kob, W.
We have determined the vibrational properties of a sodium tetrasilicate (Na$_{2}$Si$_{4}$O$_{9}$) glass model generated by molecular dynamics simulations. The study has been carried out using a...
Dynamics of a rod in a random static environment: non-Gaussianity at large length scales (2003)
We present molecular dynamics simulations of the motion of a single rod in a two-dimensional random static array of disks. For long rods the mean-squared displacement of the center-of-mass shows a...
Horbach, J., Winkler, A., Kob, W., Binder, K.
We present the results of large scale computer simulations in which we investigate the structural and dynamic properties of silicate melts with the compositions (Na_2O)2(SiO_2) and (Al_2O_3)2(SiO_2)....
Molecular Dynamics Simulation of Confined Glass forming Liquids (2001)
Varnik, F., Scheidler, P., Baschnagel, J., Kob, W., Binder, K.
Vollmayr-Lee, K., Kob, W., Binder, K., Zippelius, A.
We investigate a binary Lennard-Jones mixture with molecular dynamics simulations. We consider first a system cooled linearly in time with the cooling rate gamma. By varying gamma over almost four...
Thermodynamics of supercooled liquids in the inherent structure formalism: a case study (1999)
Sciortino, F., Kob, W., Tartaglia, P.
In this article we review the thermodynamics of liquids in the framework of the inherent structure formalism. We then present calculations of the distribution of the basins in the potential energy of...
Inherent Structure Entropy of Supercooled Liquids (1999)
We present a quantitative description of the thermodynamics in a supercooled binary Lennard Jones liquid via the evaluation of the degeneracy of the inherent structures, i.e. of the number of...
Inherent Structure Entropy of Supercooled Liquids (1999)
Sciortino, F., Kob, W., Tartaglia, P.
We present a quantitative description of the thermodynamics in a supercooled binary Lennard Jones liquid via the evaluation of the degeneracy of the inherent structures, i.e. of the number of...
Spatial Correlations of Mobility and Immobility in a Glassforming Lennard-Jones Liquid (1998)
Donati, C., Glotzer, S. C., Poole, P. H., Kob, W., Plimpton, S. J.
Using extensive molecular dynamics simulations of an equilibrium, glass-forming Lennard-Jones mixture, we characterize in detail the local atomic motions. We show that spatial correlations exist...
The Mode-Coupling Theory of the Glass Transition (1997)
We give a brief introduction to the mode-coupling theory of the glass transition, a theory which was proposed a while ago to describe the dynamics of supercooled liquids. After presenting the basic...
Small-Angle Excess Scattering: Glassy Freezing or Local Orientational Ordering? (1996)
Weber, H., Paul, W., Kob, W., Binder, K.
We present Monte Carlo simulations of a dense polymer melt which shows glass-transition-like slowing-down upon cooling, as well as a build up of nematic order. At small wave vectors q this model...
Some Finite Size Effects in Simulations of Glass Dynamics (1996)
Horbach, J., Kob, W., Binder, K., Angell, C. A.
We present the results of a molecular dynamics computer simulation in which we investigate the dynamics of silica. By considering different system sizes, we show that in simulations of the dynamics...
Cooling rate dependence of the internal structure of a Lennard-Jones glass (1995)
Vollmayr, K., Kob, W., Binder, K.
Using molecular dynamics computer simulations we investigate the dependence of bulk properties of a Lennard-Jones glass on the cooling rate with which the glass was produced. By studying the clusters...