Observations on superfluid meniscus in rotating 3He- B

H. Alles*, J. P. Ruutu, A. V. Babkin, P. J. Hakonen, O. V. Lounasmaa, E. B. Sonin

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)
10 Downloads (Pure)

Abstract

The parabolic superfluid meniscus has been seen for states in which only (1) the normal or (2) the superfluid component of 3He- B rotates. A reduced, temperature-dependent meniscus (1) was formed at small speeds Ω0.21 rad /s. A deeper-than-expected meniscus (2) was observed after a rapid halt of the cryostat, when the normal fluid stops during a short relaxation time, followed by slow decay of the superfluid circulation. The depth of the meniscus (2) was explained by a reactive radial force between the rotating superfluid and the stationary normal liquid.

Original languageEnglish
Pages (from-to)2744-2747
Number of pages4
JournalPhysical Review Letters
Volume74
Issue number14
DOIs
Publication statusPublished - 1995
MoE publication typeA1 Journal article-refereed

Keywords

  • mutual friction
  • superfluid meniscus
  • vortex free state

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