12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Evidence for an energy barrier impeding the cre...
View graph of relations

« Back

Evidence for an energy barrier impeding the creation of quantized vortices in He II.

Research output: Contribution to journalJournal article

Published

Journal publication date1987
JournalJapanese Journal of Applied Physics
Journal numberSupple
Volume26
Number of pages2
Pages73-74
Original languageEnglish

Abstract

The rate nu at which negative ions create quantized vortex rings in isotopically pure He II has been measured for temperatures 70 < T < 500 mK, pressures 12 < P < 19 bar and electric fields 10^4 < E < 10^S V/m. The result can be taken to imply the existence of an energy barrier impeding the nucleation process of ~3K.

Bibliographic note

Proceedings of the 18th lnternational Conference on Low Temperature Physics, Kyoto, 1987