Reentrant wetting of 3He-4He mixtures on Cs: A closer analysis

The various effects determining quantitatively the reentrant wetting phase diagram of helium mixtures on Cs are discussed. Particularly crucial is the temperature dependence of the helium surface tension, for which different interpretations exist in the literature. Recent experiments by the Irvine group are compatible with the predicted existence of a bound state at the helium/Cs interface, but more direct confirmation is clearly needed