Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2003-08-21
Phys. Rev. E 69, 011401 (2004)
Physics
Condensed Matter
Soft Condensed Matter
13 pages, 12 figures
Scientific paper
10.1103/PhysRevE.69.011401
Within the mode-coupling theory for ideal glass-transitions, the mean-squared displacement and the correlation function for density fluctuations are evaluated for a colloidal liquid of particles interacting with a square-well potential for states near the crossing of the line for transitions to a gel with the line for transitions to a glass. It is demonstrated how the dynamics is ruled by the interplay of the mechanisms of arrest due to hard-core repulsion and due to attraction-induced bond formation as well as by a nearby higher-order glass-transition singularity. Application of the universal relaxation laws for the slow dynamics near glass-transition singularities explains the qualitative features of the calculated time dependence of the mean-squared displacement, which are in accord with the findings obtained in molecular-dynamics simulation studies by Zaccarelli et. al [Phys. Rev. E 66, 041402 (2002)]. Correlation functions found by photon-correlation spectroscopy in a micellar system by Mallamace et. al [Phys. Rev. Lett. 84, 5431 2000)] can be interpreted qualitatively as a crossover from gel to glass dynamics.
No associations
LandOfFree
Dynamics in Colloidal Liquids near a Crossing of Glass- and Gel-Transition Lines does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dynamics in Colloidal Liquids near a Crossing of Glass- and Gel-Transition Lines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamics in Colloidal Liquids near a Crossing of Glass- and Gel-Transition Lines will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-541541