Reentrant superfluidity in He4 films adsorbed on graphite

P. A. Crowell, J. D. Reppy

Research output: Contribution to journalArticlepeer-review

80 Scopus citations


We report on torsional oscillator studies of superfluidity in the second and higher layers of He4 films adsorbed on basal plane graphite. Our measurements reveal several novel features. We observe a reentrant superfluid phase in the second layer of adsorbed helium. Superfluidity disappears before the completion of the second layer and reappears early in the third layer. A well-defined plateau in the transition temperature occurs at the beginning of the fourth layer.

Original languageEnglish (US)
Pages (from-to)3291-3294
Number of pages4
JournalPhysical review letters
Issue number21
StatePublished - 1993
Externally publishedYes


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