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Profound influence of isotopic impurities on vortex nucleation in He II.

McClintock, Peter V. E. and Moss, F. E. and Nancolas, G. G. and Stamp, P. C. E. (1981) Profound influence of isotopic impurities on vortex nucleation in He II. Physica B: Condensed Matter, 107. pp. 573-574. ISSN 0921-4526

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Abstract

We have confirmed earlier suspicions that the rate nu at which negative ions nucleate vortex rings in Hell is quite extraordinarily sensitive to the presence of tiny traces of 3He isotopic impurity. We find that, in low electric fields E, nu(E) for natural helium exhibits a maximum whose position and magnitude are dependent on temperature.

Item Type: Article
Journal or Publication Title: Physica B: Condensed Matter
Additional Information: Proceedings of the 16th International Conference on Low Temperature Physics, Los Angeles, 19-25 August 1981.
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 32490
Deposited By: Professor P. V. E. McClintock
Deposited On: 12 Apr 2010 09:06
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 17:11
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/32490

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