6533b7d3fe1ef96bd12602be

RESEARCH PRODUCT

Aging in a free-energy landscape model for glassy relaxation

Gregor Diezemann

subject

Scattering functionMaterials scienceScale (ratio)Degrees of freedom (physics and chemistry)FOS: Physical sciencesGeneral Physics and AstronomyThermodynamicsEnergy landscapeCondensed Matter - Soft Condensed MatterSoft Condensed Matter (cond-mat.soft)Relaxation (physics)Physical and Theoretical ChemistrySupercoolingGlass transitionLandscape model

description

The aging properties of a simple free-energy landscape model for the primary relaxation in supercooled liquids are investigated. The intermediate scattering function and the rotational correlation functions are calculated for the generic situation of a quench from a high temperature to below the glass transition temperature. It is found that the re-equilibration of molecular orientations takes longer than for translational degrees of freedom. The time scale for re-equilibration is determined by that of the primary relaxation as an intrinsic property of the model.

yearjournalcountryeditionlanguage
2005-11-22
10.1063/1.2128700http://arxiv.org/abs/cond-mat/0508461