The high frequency dynamics of liquid and supercritical nitrogen

Filippo Bencivenga (1) , Alessandro Cunsolo (2) , Michael Krisch (1) , Giulio Monaco (1) , Giancarlo Ruocco (3) , Francesco Sette (1)

1 ESRF - European Synchrotron Radiation Facility
2 ILL
3 Physics

Inelastic X-Ray scattering has been employed to study the sound dispersion of nitrogen in its liquid and supercritical phase. In the liquid phase we clearly observe the occurrence of a positive sound dispersion associated with a structural relaxation process. Approaching the supercritical phase this phenomenon gradually disappears..

Mots clés: Physical Sciences

Filippo Bencivenga, Alessandro Cunsolo, Michael Krisch, Giulio Monaco, Giancarlo Ruocco, et al.. The high frequency dynamics of liquid and supercritical nitrogen. Philosophical Magazine, 2007, 87 (3-5), pp.665-671. ⟨10.1080/14786430601003924⟩. ⟨hal-00513780⟩