6533b85bfe1ef96bd12bacb2
RESEARCH PRODUCT
Some Finite Size Effects in Simulations of Glass Dynamics
Charles AngellKurt BinderWalter KobJürgen Horbachsubject
PhysicsScattering functionStatistical Mechanics (cond-mat.stat-mech)010304 chemical physicsDynamics (mechanics)FOS: Physical sciences01 natural sciencesMolecular physicsCondensed Matter::Disordered Systems and Neural NetworksMean squared displacementCondensed Matter::Soft Condensed MatterMolecular dynamics0103 physical sciencesRelaxation (physics)010306 general physicsCondensed Matter - Statistical Mechanicsdescription
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 of this strong glass former surprisingly large finite size effects are present. In particular we demonstrate that the relaxation times of the incoherent intermediate scattering function and the time dependence of the mean squared displacement are affected by such finite size effects. By compressing the system to high densities, we transform it to a fragile glass former and find that for that system these types of finite size effects are much weaker.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-12-01 |