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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: Article
Journal or Publication Title: Physics Letters A
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 32498
Deposited By: Professor P. V. E. McClintock
Deposited On: 12 Apr 2010 09:46
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 17:11
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/32498

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