A roton-driven mechanism for nucleation of negatively charged vortex rings in isotopically pure 4He.

McClintock, Peter V. E. and Moss, F. E. and Bowley, R. M. (1980) A roton-driven mechanism for nucleation of negatively charged vortex rings in isotopically pure 4He. Physics Letters A, 76 (3-4). pp. 303-305. ISSN 0375-9601

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Abstract

We have measured the temperature dependence of the vortex nucleation rate due to negative ions in isotopically pure superfluid 4He. We conclude that nucleation proceeds via two independent mechanisms: a temperature-independent "intrinsic" mechanism; and a roton-driven mechanism, dominant above 0.6 K.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters A
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
32498
Deposited On:
12 Apr 2010 08:46
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 06:55