Deformation of inherent structures to detect long-range correlations in supercooled liquids
arXiv:1207.0383 · doi:10.1063/1.4732859
Abstract
We propose deformations of inherent structures as a suitable tool for detecting structural changes underlying the onset of cooperativity in supercooled liquids. The non-affine displacement (NAD) field resulting from the applied deformation shows characteristic differences between the high temperature liquid and supercooled state, that are typically observed in dynamic quantities. The average magnitude of the NAD is very sensitive to temperature changes in the supercooled regime and is found to be strongly correlated with the inherent structure energy. In addition, the NAD field is characterized by a correlation length that increases upon lowering the temperature towards the supercooled regime.
15 pages, 12 figures
References in corpus (11)
- Supercooled Liquids for Pedestrians
- Irreversible reorganization in a supercooled liquid originates from localised soft modes
- Inhomogeneous Mode-Coupling Theory and Growing Dynamic Length in Supercooled Liquids
- Growing length and time scales in glass forming liquids
- Inhomogeneous elastic response of silica glass
- Short and long range correlated motion observed in colloidal glasses and liquids
- Particle displacements in the elastic deformation of amorphous materials: local fluctuations vs. non-affine field
- Probing a critical length scale at the glass transition
- Non-affine deformations of inherent structure as signature of cooperativity in supercooled liquids
- Are there localized saddles behind the heterogeneous dynamics of supercooled liquids?
- Exponential distributions of collective flow-event properties in viscous liquid dynamics