Observations on Superfluid Meniscus in Rotating 3He-B

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
1995
Major/Subject
Mcode
Degree programme
Language
en
Pages
2744-2747
Series
Physical Review Letters, Volume 74, Issue 14
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 Ω≲0.21 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.
Description
Keywords
superfluid meniscus, vortex free state, mutual friction
Other note
Citation
Alles, H. & Ruutu, J. P. & Babkin, A. V. & Hakonen, Pertti J. & Lounasmaa, O. V. & Sonin, E. B. 1995. Observations on Superfluid Meniscus in Rotating 3He-B. Physical Review Letters. Volume 74, Issue 14. 2744-2747. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.74.2744