Volume 42, Number 2, April II 1998
|Page(s)||161 - 166|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
Is there a liquid-liquid phase transition in supercooled water?
Laboratoire Léon Brillouin (CEA-CNRS), CEA Saclay,
Accepted: 5 March 1998
Previous studies of the structure of liquid water under pressure performed by neutron diffraction allowed us to establish two structural limits in liquid water. These two limits are closely connected to the two known forms of amorphous ice: the low-density amorphous ice (LDA) and the high-density amorphous ice (HDA). In the present paper, we propose some interpretation of our data in terms of a “two-level”–type model of water. This leads to show some evidence of a liquid-liquid phase transition in liquid supercooled water. The result looks in agreement with recent computer simulations that incorporate the two forms of amorphous ice.
PACS: 61.12.Ex – Neutron scattering techniques (including small-angle scattering) / 61.25.Em – Molecular liquids / 64.70.Ja – Liquid-liquid transitions
© EDP Sciences, 1998
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