Stamp, P. C. E. and McClintock, Peter V. E. and Fairbairn, W. M. (1979) Possible influence of thermal rotons on vortex nucleation by negative ions in pressurised HeII below 1 K. Journal of Physics C: Solid State Physics, 12 (15). L589-L593. ISSN 0022-3719
Full text not available from this repository.Official URL: http://dx.doi.org/10.1088/0022-3719/12/15/001
Abstract
A new technique has been developed for measuring the nucleation rate nu of negatively charged vortex rings in HeII when the temperature T, pressure P and electric field E are such that the bare-ion drift velocity is limited principally by roton emission. For P = 25 bar, E = 7.9 x l0^5 V/m and 0.7 < T < 0.9 K, the relation nu(T) = 8.0 x l0^7 exp( - 6.2/T) was obtained, which suggests that the magnitude of nu may be closely related to the thermal roton density
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Journal of Physics C: Solid State Physics |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 32503 |
| Deposited By: | Professor P. V. E. McClintock |
| Deposited On: | 12 Apr 2010 10:15 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 26 Jul 2012 17:11 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/32503 |
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