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.


Original languageEnglish
Pages (from-to)411-419
Number of pages9
JournalPhysica B: Condensed Matter
Issue number3-4
Publication statusPublished - 2 May 1995
MoE publication typeA1 Journal article-refereed

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