Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines cond-mat
Date Lundi 27 Septembre 2010
Heure 11:00
Institut IMPMC
Salle amphitheatre
Nom de l'orateur Stanley
Prenom de l'orateur Eugene
Addresse email de l'orateur
Institution de l'orateur Departments of Physics and Chemistry, Boston Univ., Boston, MA 02215 USA
Titre Liquid water, the ``most complex'' liquid:new results in nanoconfined and biological environments
Résumé We will introduce some of the 64 anomalies of the most complex of liquids, water---focusing on recent progress in understanding these anomalies by combining information provided by recent experiments and simulations on water in bulk, nanoconfined and biological environments. We will interpret evidence from recent experiments designed to test the hypothesis that liquid water may display ``polymorphism'' in that it can exist in two different phases---and discuss recent work on nanoconfined water anomalies as well as the related, and highly unusual, behavior of water in biological environments. Finally, we will discuss how the general concept of liquid polymorphism is proving useful in understanding anomalies in other liquids, such as silicon, silica, and carbon, as well as metallic glasses, which have in common that they are characterized by two characteristic length scales in their interactions.
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