Volume 45, Number 2, January 1999
|Page(s)||175 - 180|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
Can local order changes induce a phase transition in a liquid?
Centre de Thermodynamique et de Microcalorimétrie du CNRS 26, rue du
141ème RIA, 13003 Marseille, France
2 Laboratoire Léon Brillouin, CE Saclay - 91191 Gif-sur-Yvette, France
Accepted: 17 November 1998
Neutron scattering measurements of the local order in mixtures were performed. Partial contributions to the first coordination shell were obtained by suitable modeling of the structure factors. Rapid changes in the local atomic environment are shown to be responsible for the closed-loop miscibility gap that occurs around x=0.4 at high temperature.
PACS: 61.12.-q – Neutron diffraction and scattering / 61.20.-p – Structure of liquids / 64.70.Ja – Liquid-liquid transitions
© EDP Sciences, 1999
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