Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2006-11-02
Physics
Condensed Matter
Disordered Systems and Neural Networks
4 pages, 3 figures, accepted by Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.97.245702
The high frequency dynamics of fluid oxygen have been investigated by Inelastic X-ray Scattering. In spite of the markedly supercritical conditions ($T\approx 2 T_c$, $P>10^2 P_c$), the sound velocity exceeds the hydrodynamic value of about 20%, a feature which is the fingerprint of liquid-like dynamics. The comparison of the present results with literature data obtained in several fluids allow us to identify the extrapolation of the liquid vapor-coexistence line in the ($P/P_c$, $T/T_c$) plane as the relevant edge between liquid- and gas-like dynamics. More interestingly, this extrapolation is very close to the non metal-metal transition in hot dense fluids, at pressure and temperature values as obtained by shock wave experiments. This result points to the existence of a connection between structural modifications and transport properties in dense fluids.
Gorelli Federico
Krisch Michael
Ruocco Giancarlo
Santoro Mario
Scopigno Tullio
No associations
LandOfFree
Liquid-like behavior of supercritical fluids does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Liquid-like behavior of supercritical fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid-like behavior of supercritical fluids will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-291759