ELLIPSOMETRIC STUDY OF THE ICE SURFACE STRUCTURE JUST BELOW THE MELTING POINT
Résumé
The refractive index n1 and the thickness d of the transition layer (quasi-liquid layer) on the surface of an ice crystal at temperatures just below the melting point (0°C) were measured in equilibrium, using an in-situ method of ellipsometry. The transition layers were observed at temperatures above -2 and -4°C for {0001}- and {10[MATH]0}- faces, respectively, and n1 was 1.330 for both faces, which is very close to the refractive index of bulk water at 0°C (nw = 1.333). Combined with the observational results about the ice crystal shapes near the melting point, it was expected that the interface structure between transition layer and ice on the {10[MATH]0}- face changes from smooth to rough at -2°C.
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Articles anciens
Origine : Accord explicite pour ce dépôt
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