Observations on vortex formation in superfluid 3He

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Abstract

Observations on vortex formation in 3He-A and -B obtained in a 5-mm cylinder using cw NMR in fields of 28 and 50 mT at 29.3 bar pressure are reported. In the A-phase, stationary cool-downs were seen to produce NMR lineshapes which display a soliton and a vortex satellite peak simultaneously. In the B-phase, the critical velocity strongly decreased when the temperature was lowered between 0.55 and 0.4Tc and at the same time, the average rate of vortex formation was reduced by a factor of more than ten. In addition, specific problems in the determination of the field-induced intrinsic orbital angular momentum of 3He-B are discussed.

Details

Original languageEnglish
Pages (from-to)83-89
Number of pages7
JournalPhysica B: Condensed Matter
Volume178
Issue number1-4
Publication statusPublished - 2 May 1992
MoE publication typeA1 Journal article-refereed

    Research areas

  • NMR, superfluid 3He, vortex formation

ID: 4380048