Multiple glasses in asymmetric binary hard spheres
Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR) 51170 Köln, Germany, EU,
2 Fachbereich Physik, Universität Konstanz - 78457 Konstanz, Germany, EU and
3 Zukunftskolleg, Universität Konstanz - 78457 Konstanz, Germany, EU
Accepted: 19 September 2011
Multiple distinct glass states with different dynamic and mechanical properties occur in binary hard-sphere mixtures with constituents of very disparate sizes according to the mode-coupling theory of the glass transition (MCT), distinguished by considering whether small particles remain mobile or not, and whether small particles contribute significantly to perturb the big-particle structure or not. In the idealized case, the four different glasses are separated by well-defined glass and localization transitions that give rise to higher-order singularities involving logarithmic decay laws, and to anomalous power-law–like diffusion.
PACS: 64.70.Q- – Theory and modeling of the glass transition / 64.70.pv – Colloids
© EPLA, 2011