Relaxation in binary mixtures: Non-ideality, heterogeneity and re-entrance

Arnab Mukherjee, Goundla Srinivas, Sarika Bhattacharyya, Biman Bagchi
2001 Proceedings of the Indian Academy of sciences. Chemical sciences  
Binary mixtures show many kinds of fascinating dynamical behaviour which has eluded microscopic description till very recently. In this work we show that much of the anomalous behaviour can be explained by building suitable models and carrying out theoretical and simulation studies. Specifically, three well-known problems have been addressed here. (a) Non-ideality in composition dependence of viscosity, (b) re-entrant behaviour of orientational relaxation, and (c) heterogeneity in supercooled
more » ... nary mixtures. The physical origin of the dynamical behaviour of binary mixtures can be understood in terms of composition fluctuation, a study of which has also been presented in this paper.
doi:10.1007/bf02708779 fatcat:dyvbdc5shvae3oubdxebuv7dhm