Structure of coexisting liquid phases of supercooled water: analogy with ice polymorphs.
The structural changes occurring in supercooled liquid water upon moving from one coexisting liquid phase to the other have been investigated by computer simulation using a polarizable interaction potential model. The obtained results favorably compare with recent neutron scattering data of high and low density water. In order to assess the physical origin of the observed structural changes, computer simulation of several ice polymorphs has also been carried out. Our results show that there is a strict analogy between the structure of various disordered (supercooled) and ordered (ice) phases of water, suggesting that the occurrence of several different phases of supercooled water is rooted in the same physical origin that is responsible for ice polymorphism.
Jedlovszky
Pál
P
Laboratory of Interfaces and Nanosize Systems, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter sétány. 1/a, H-1117 Budapest, Hungary.
Pártay
Lívia B
LB
Bartók
Albert P
AP
Garberoglio
Giovanni
G
Vallauri
Renzo
R