Structure of thin layer water (1-4 ML) on BaF2(111) surfaces at ambient conditions and in ultra high vacuum at cryogenic temperatures was investigated by utilizing X-ray absorption spectroscopy (XAS) at oxygen K-edge.  shows that the spectral features characteristic to crystalline and amorphous ice are weakened at ambient conditions, representing close similarities to XAS spectra of liquid water. The structure of water on BaF2(111) surfaces in supercooled regime can be considered as high density liquid at ambient conditions.

Structure of water on BaF<sub>2</sub>(111) at ambient conditions

239th National Meeting (2010)

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Structure of water on BaF2(111) at ambient conditions

Structure of water on BaF₂(111) at ambient conditions