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Measurements on the surface tension of He-3 crystals near 100 mK.

Todoshchenko, Igor A. and Alles, Harry and Junes, Heikki J. and Parshin, Alexander Y. and Tsepelin, Viktor (2005) Measurements on the surface tension of He-3 crystals near 100 mK. Journal of Low Temperature Physics, 138 (3-4). pp. 811-816. ISSN 0022-2291

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Abstract

He-3 crystals start to show facets on their surface only at about 100 mK, well below the roughening transition temperature, and the reason for this change of the surface state is not clear yet. However, the most important characteristic of the crystal surface, the surface tension, was not measured in this temperature range before. We report our observations on the equilibrium shape of the He-3 crystals in the temperature range of 77...110 mK. The surface tension was found to be isotropic and temperature-independent, and the corresponding value of the capillary length, lambda = 0.93 +/- 0.10 mm, is in a good agreement with the value measured at higher temperatures by Rolley et al.

Item Type: Article
Journal or Publication Title: Journal of Low Temperature Physics
Uncontrolled Keywords: SOLID HE-3 ; GROWTH
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23522
Deposited By: Dr Richard P. Haley
Deposited On: 03 Feb 2009 09:44
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:11
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23522

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