Lancaster EPrints

Pressure dependence of vortex tunneling in He II.

Hendry, P. C. and Lawson, N. S. and McClintock, Peter V. E. (1990) Pressure dependence of vortex tunneling in He II. Physica B: Condensed Matter, 165-16 (1). pp. 757-758. ISSN 0921-4526

Full text not available from this repository.


Measurements of the rate nu at which negative ions nucleate charged vortex rings in isotopically pure superfluid He-4 for electric fields E, temperatures T and pressures P within the ranges 10^3 < E < 10^6 V/m, 75 < T < 500 mK, 12 < P < 23 bar show that the energy barrier impeding the tunneling process is strongly dependent on pressure. Minima observed in nu(T) are ascribed to phonon damping.

Item Type: Journal Article
Journal or Publication Title: Physica B: Condensed Matter
Additional Information: Proceedings of the 19th International Conference on Low Temperature Physics (LT19), Brighton, 16-22 August 1990.
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 32247
Deposited By: Professor P. V. E. McClintock
Deposited On: 18 Mar 2010 15:15
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2018 04:17
Identification Number:

Actions (login required)

View Item