Coupling of zero sound to the real squashing mode in rotating 3B
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© 1989 American Physical Society (APS). http://www.aps.org/
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Authors
Salmelin, Riitta
Pekola, Jukka P.
Manninen, A. J.
Torizuka, K.
Berglund, M. P.
Kyynäräinen, J. M.
Lounasmaa, O. V.
Tvalashvili, G. K.
Magradze, O. V.
Varoquaux, E.
Date
1989
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Mcode
Degree programme
Language
en
Pages
620-623
Series
Physical Review Letters, Volume 63, Issue 6
Abstract
Rotation of superfluid 3B in an magnetic field enhances the coupling of the nonzero mJ substrates of the real squashing collective mode to the zero sound, and the fivefold line splitting becomes observable even when H is parallel to Ω and to the direction of sound propagation. Equilibrium vortex lattices and vortex-free states can be distinguished by their characteristic absorption spectra. The dependence of the sound attenuation on the angular velocity in magnetic fields up to 32 mT is reported; the data are qualitatively compared with theory.Description
Keywords
superfluids, rotation, magnetic fields
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Citation
Salmelin, Riitta & Pekola, Jukka & Manninen, A. J. & Torizuka, K. & Berglund, M. P. & Kyynäräinen, J. M. & Lounasmaa, O. V. & Tvalashvili, G. K. & Magradze, O. V. & Varoquaux, E. & Avenel, O. & Mineev, V. P. 1989. Coupling of zero sound to the real squashing mode in rotating 3B. Physical Review Letters. Volume 63, Issue 6. P. 620-623. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.63.620.