Coupling of zero sound to the real squashing mode in rotating B3

R. H. Salmelin, J. P. Pekola, A. J. Manninen, K. Torizuka, M. P. Berglund, J. M. Kyynäräinen, O. V. Lounasmaa, G. K. Tvalashvili, O. V. Magradze, E. Varoquaux, O. Avenel, V. P. Mineev

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Abstract

Rotation of superfluid B3 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 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.

Original languageEnglish
Pages (from-to)620-623
Number of pages4
JournalPhysical Review Letters
Volume63
Issue number6
DOIs
Publication statusPublished - 1989
MoE publication typeA1 Journal article-refereed

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