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
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Official URL: https://doi.org/10.1016/S0921-4526(90)81228-G
Abstract
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.
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
?? ELECTRONIC, OPTICAL AND MAGNETIC MATERIALSELECTRICAL AND ELECTRONIC ENGINEERINGCONDENSED MATTER PHYSICSQC PHYSICS ??
Departments:
ID Code:
32247
Deposited By:
Deposited On:
18 Mar 2010 15:15
Refereed?:
Yes
Published?:
Published
Last Modified:
19 Sep 2023 00:26