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The vortex ring nucleation rate due to negative ions travelling near the Landau velocity in He II.

Research output: Contribution to journalJournal articlepeer-review

Published
<mark>Journal publication date</mark>7/04/1974
<mark>Journal</mark>Journal of Physics C: Solid State Physics
Issue number7
Volume7
Pages (from-to)L118-L122
Publication StatusPublished
<mark>Original language</mark>English

Abstract

Field emission characteristics in He II at temperatures 0.3 < T < 0.8 K and under pressures 10 < P < 25 bar have been used to deduce values of the vortex ring nucleation rate nu in electric fields E of order 3 kV/cm. The values of nu obtained are an order of magnitude larger than those recently determined by Zoll and Schwarz, who employed a completely different technique at the same T and P but with e of order 20 V/cm.