6533b857fe1ef96bd12b4583

RESEARCH PRODUCT

Scaling behavior in the dynamics of a supercooled Lennard-Jones mixture

Walter KobHans C. Andersen

subject

PhysicsScale (ratio)Condensed Matter (cond-mat)Dynamics (mechanics)FOS: Physical sciencesGeneral Physics and AstronomyThermodynamicsBinary numberCondensed MatterType (model theory)Condensed Matter::Disordered Systems and Neural Networks01 natural sciences010305 fluids & plasmasCondensed Matter::Soft Condensed MatterMolecular dynamics0103 physical sciencesExponent010306 general physicsSupercoolingScaling

description

We present the results of a large scale molecular dynamics computer simulation of a binary, supercooled Lennard-Jones fluid. At low temperatures and intermediate times the time dependence of the intermediate scattering function is well described by a von Schweidler law. The von Schweidler exponent is independent of temperature and depends only weakly on the type of correlator. For long times the correlation functions show a Kohlrausch behavior with an exponent $\beta$ that is independent of temperature. This dynamical behavior is in accordance with the mode-coupling theory of supercooled liquids.

https://doi.org/10.1007/bf02458815