Optical interferometry in phase separated 3He4He mixture films
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We report on interferometric studies of 3He4He liquid mixtures. Anomalous wetting phenomena were observed in phase separated mixture films: the upper 3He-rich phase did not wet the lower 4He-rich phase under a small continuous feed of 4He atoms to the vapor phase. Instead, under this dynamic situation, floating pools of the 3He-rich phase were stabilized with a contact angle on the order of 10 mrad. In equilibrium, the concentrated 3He-rich phase was found to nucleate uniformly on the free surface, consistent with Antonow's rule.
|Number of pages||9|
|Journal||Physica B: Condensed Matter|
|Publication status||Published - 2 May 1995|
|MoE publication type||A1 Journal article-refereed|