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Inelastic X-ray scattering in molecular liquids and electron correlation effects
H Hayashi1, N Watanabe, Y Udagawa
1Research Institute for Scientific Measurements, Tohoku University, Katahira 2-1-1, Aoba-Ku, Sendai 980-77, Japan.
Journal of Synchrotron Radiation
|July 21, 2004
Abstract:
Inelastic X-ray scattering spectra of liquid water and cyclohexane have been measured with 2 eV resolution for a momentum transfer range between 0.69 and 2.77 au at BL16A of the Photon Factory, KEK, Tsukuba. Observed spectra are transformed to the dynamic structure factor which is normalized by using the Bethe sum rule, and the static structure factor is obtained. From a comparison with extended CI calculations by the use of various basis sets, correlation effects are proved to be of vital importance in inelastic X-ray scattering.