Revealing the Mechanism of the Viscous-to-Elastic Crossover in Liquids.


In this work, we report on inelastic X-ray scattering experiments combined with the molecular dynamics simulations on deeply supercritical Ar. The presented results unveil the mechanism and regimes of sound propagation in the liquid matter and provide compelling evidence for the adiabatic-to-isothermal longitudinal sound propagation transition. We introduce… (More)
DOI: 10.1021/acs.jpclett.5b01338

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