ESPCI web site
PMMH’s weekly seminar is held every Friday at 11 am (map)
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
PMMH
BARRE CASSAN
BAT A 1ER ETAGE CASE 18
7 QUAI SAINT BERNARD
75005 PARIS
France
Tel : (33) 1 40 79 45 22
Sara Jabbari (LPTMS, Université de Paris-Sud 11)
Interplay of anisotropy and interactions in charged colloidal disks
Charged plate-like colloidal suspensions such as gibbsite and some clays exhibit interesting and rich phase behavior including liquid-crystalline and arrested gel-like states. The anisotropic shape of such particles suggests that these materials could form liquid crystalline phases due to the competition between positional and orientational entropy. In some cases, however, isotropic-nematic transition is hindered by formation of a gel-like viscoelastic phase. The question that arises is how the electrostatic interactions influence the liquid crystal formation. Motivated by these experimental findings, we have investigated the structure and dynamics of charged disks by means of Monte-Carlo simulations. In this talk, I will clarify the the role of anisotropic nature of screened electrostatic interactions on the formation of liquid-crystalline phases and arrested states. Finally, I will compare the results of our simulations with experiments.
The audience is composed of people with rather heterogeneous backgrounds including specialists in solids, fluids, granular flows, statistical physics... so the idea is to keep your talk understandable by people not necessarily working in your field... The seminar time slot runs from 11am to noon so the best is to make the talk last around 45 minutes to leave some time for discussion.
- Séminaires ESPCI-ENS de biophysique
- Séminaires du Département de Physique de l’ENS
- Séminaires du Laboratoire d’Hydrodynamique de l’X
- Séminaire de Mécanique d’Orsay (page web FAST)
- Séminaire de Mécanique d’Orsay (page web LIMSI)
- Séminaire de Mécanique des Fluides de l’Institut Jean le Rond d’Alembert
- Séminaires du laboratoire MSC, Paris VII
- Séminaires Gulliver
Link to cofee seminar (internal, every Thursday)
