Ultrasonic experiments on rotating superfluid 3HeA1

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • K. Torizuka
  • J.P. Pekola

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

Research units

  • Georgian National Academy of Sciences

Abstract

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.

Details

Original languageEnglish
Pages (from-to)623-624
Number of pages2
JournalPhysica B: Condensed Matter
Volume165-166
Issue numberPart 1
Publication statusPublished - Aug 1990
MoE publication typeA1 Journal article-refereed

ID: 4392169