Short range attractive colloids: Dynamics and energy landscape properties

We discuss the static and dynamical properties of a model of short range attractive colloidal systems. Our model is a binary mixture of particles interacting with a modified Lennard-Jones potential that we simulated by molecular dynamics. As previously found, we confirm the existence of a maximum in diffusivity on varying the temperature at constant high density. The possibility to characterize such a maximum by studying the properties of the potential energy landscape (PEL) is also discussed. This has been achieved by calculating the configurational entropy following two independent methods. It is shown that this quantity presents a maximum in correspondence with that of diffusivity. © IOP Publishing Ltd.


Published in:
Journal of Physics Condensed Matter, 20, 7, 075108
Year:
2008
ISSN:
09538984
1361648X
Other identifiers:
View record in Web of Science
Scopus: 2-s2.0-38949160730
Laboratories:




 Record created 2010-01-27, last modified 2018-09-13


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)