Abstract:We describe two experiments on the properties of ' He near the surface of graphite. In the first experiment, we measured the growth of solid 4~e on the surface as a function of the pressure in the liquid. In a second, recent experiment we attempted to observe the melting of this solid layer as the temperature was raised. In addition to melting, we observed another, more dominant effect, which we interpret as a possible penetration of 4~e into the graphite.Nous dCcrivons deux experiences sur les propriCtCs de 4… Show more
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