SURFACE TENSION OF 4He NEAR THE CRITICAL POINT
نویسنده
چکیده
The behaviour of simple liquids in the vicinity of the critical point is generally well understood. The relevant bulk quantities like compressibility, correlation length and density difference between the coexisting liquid and vapour phase are described by power laws, whose critical exponents are in close agreement with renormalization group calculations; relationships between these critical exponents are given by the scaling laws [ 1,2]. , The critical behaviour of the bulk materials is also reflected in the properties of the interface between the coexisting phases, in particular the interfacial tension o. At the critical temperature Tc, o has to vanish because the liquid and vapor phase become identical. One therefore expects a behaviour of the form
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