The transport properties of glass-forming systems have many features that are not found in normal liquids. Among them is a very strong sensitivity of the relaxation times upon a change in temperature and the presence of so-called dynamical heterogeneities.
In this review we discuss these unusual properties and present the results of a simple lattice gas model that helps to understand the origin of these heterogeneities from the microscopic level. Furthermore we discuss a simple analytical model, the continuous time random walk, and show that it allows to describe some aspects of the relaxation dynamics of glass-forming systems on a semi-quantitative level.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:14020 |
| Date | January 2009 |
| Creators | Chaudhuri, Pinaki, Berthier, Ludovic, Sastry, Srikanth, Kob, Walter |
| Contributors | Université Montpellier 2 and CNRS, Jawaharlal Nehru Centre for Advanced Scientific Research, Universität Leipzig |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Source | Diffusion fundamentals 11 (2009) 55, S. 1-19 |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | urn:nbn:de:bsz:15-qucosa-179060, qucosa:13504 |
Page generated in 0.0015 seconds