NSLS-II Friday Lunchtime Seminar

"Real-space Local Correlated Motion in Liquids studied by using Inelastic Scattering"

Presented by Yuya Shinohara, Oak Ridge National Laboratory

Friday, January 17, 2020, 12:00 pm — NSLS-II Bldg. 743 Room 156

Liquids are critical to our daily life. A paramount example is water, which covers 70% of the Earth's surface and make up about 80% of our body. Liquids are also crucial to many current energy technologies. Despite their importance, our understanding of liquids at the atomic level is much poorer than that for crystalline solids. Particularly elusive is a detailed description of the correlated dynamics in liquids, which is the key to controlling the transport properties of liquids. Recent progress in inelastic X-ray/neutron scattering makes it possible to obtain inelastic scattering spectra over a wide energy transfer (E) and momentum transfer (Q) with a high E- and Q-resolution within a reasonable amount of time. This enables us to calculate the Van Hove correlation functions via Fourier transform. With this novel approach, we have determined spatial and temporal correlations of molecular motion of liquids. In this presentation, I will present our recent efforts in understanding the real-space local correlated motion in liquids.

Hosted by: Ignace Jarrige

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