Ultrasonic experiments on rotating superfluid 3HeA1

Research output: Contribution to journalArticle


  • K. Torizuka
  • J.P. Pekola

  • J. M. Kyynäräinen
  • A. J. Manninen
  • O. V. Lounasmaa
  • G. K. Tvalashvili

Research units

  • Georgian National Academy of Sciences


The first experiments on rotating 3HeA1 have been done using pulsed zero sound transmission techniques at several pressures in magnetic fields up to 1 T. Preliminary analysis of our data by a geometrical acoustics method suggests that the vortex cores in 3HeA1 are larger than in 3HeA2. This result is based on the strong and highly non-linear rotation dependence of sound attenuation in 3HeAl. Conclusions about the type of vortices in 3HeA1 cannot be made at present owing to lack of theory.


Original languageEnglish
Pages (from-to)623-624
Number of pages2
JournalPhysica B: Condensed Matter
Issue numberPart 1
Publication statusPublished - Aug 1990
MoE publication typeA1 Journal article-refereed

ID: 4392169