Hidden Slow Dynamics in Water
Artikel i vetenskaplig tidskrift, 2010

It is well known that the structural and dynamical properties of water are of central importance for life on our planet. However, despite this knowledge its structural and dynamical properties are still far from fully understood. In this Letter we show for the first time that water exhibits an anomalously slow relaxation process, which is about 4 orders of magnitude slower than the viscosity-related structural main relaxation. This slow Debye-like process has previously only been observed in monoalcohols and more recently also in polyalcohols, and due to its slowness it is generally believed to be caused by some kind of collective motion of hydrogen-bonded structures. The new finding has important structural and dynamical implications for water.

dielectric-relaxation

behavior

1-propanol

glass-forming liquids

room-temperature

rich mixtures

clusters

monohydroxy alcohols

Författare

Helen Jansson

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Rikard Bergman

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Jan Swenson

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 104

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1103/PhysRevLett.104.017802