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Review: Real-space analyses of local dynamics in liquid using X-ray scattering...

by Yuya Shinohara, Takuya Iwashita, Takeshi Egami
Publication Type
Journal
Journal Name
Journal of the Japanese Society for Synchrotron Radiation Research
Publication Date
Page Numbers
53 to 62
Volume
35
Issue
2

In this review, we advocate describing the liquid dynamics using the Van Hove correlation function, a temporal and spatial correlation function. Recent progress in X-ray optics and X-ray sources makes it possible to carry out inelastic and quasi-elastic x-ray scattering whose spectra can be converted into the dynamic correlation function in real space. We describe the basic concept of the Van Hove correlation function, how it is obtained from the X-ray scattering spectra using synchrotron X-rays and X-ray free electron lasers, and the atomic dynamics in water and aqueous salt solution.