Enhanced cooperativity below the caging temperature of glass-forming liquids

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

The utility of a cooperative length scale for describing the dynamics of small molecule glass-formers is shown. Molecular Dynamics and Monte Carlo simulations reveal a distribution of cooperatively moving fractal events below the temperature Ta at which dynamics become caged. Guided by these results, four straightforward methods emerge to recognize Ta in experimental data and quantify the length scale that grows on cooling below Ta. This length scale is consistent with 4-D NMR experiments which are sensitive to the slow moving population.
1 LaTeX and 3 figures that should compile to about 7 pdf pages

Keywords

Other Condensed Matter

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/24967

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0409778
 http://arxiv.org/abs/cond-mat/0409778

Collections

arXiv