Observations on Superfluid Meniscus in Rotating3He-B
| Autor: | Edouard Sonin, Pertti Hakonen, A. V. Babkin, Harry Alles, O. V. Lounasmaa, J. P. Ruutu |
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| Rok vydání: | 1995 |
| Předmět: |
Condensed Matter::Quantum Gases
Cryostat Physics Normal fluid Condensed matter physics Quantum vortex General Physics and Astronomy Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Superfluidity Circulation (fluid dynamics) Meniscus Physics::Chemical Physics Radial Force Variation Superfluid helium-4 |
| Zdroj: | Physical Review Letters. 74:2744-2747 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.74.2744 |
| Popis: | The parabolic superfluid meniscus has been seen for states in which only (1) the normal or (2) the superfluid component of He-B rotates. A reduced, temperature-dependent meniscus (1) was formed at small speeds V & 0.21 radys. 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. |
| Databáze: | OpenAIRE |
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