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The unique superfluid He-3 A-B interface: Surface tension and contact angle.

Bartkowiak, M. and Fisher, Shaun N. and Guénault, A.M. and Haley, Richard P. and Pickett, George R. and Rogge, M. C. and Skyba, P. (2002) The unique superfluid He-3 A-B interface: Surface tension and contact angle. Journal of Low Temperature Physics, 126 (1-2). pp. 533-538. ISSN 0022-2291

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Abstract

We have measured the A-B boundary wall contact angle and the phase interface surface tension in superfluid He-3. The measurements have been made in the ballistic temperature regime at zero pressure in magnetic fields up to 400 mT. We infer the surface energies from the behaviour of the phase boundary moving in and out of a stack of glass capillary tubes. We measure the wall contact angle from the observed capillary height and obtain the interphase surface tension from the level of over- or under-magnetisation when the interface "pops" out of the capillaries. This is the first measurement of both the surface tension and contact angle in high magnetic fields.

Item Type: Article
Journal or Publication Title: Journal of Low Temperature Physics
Uncontrolled Keywords: A-PHASE ; B-PHASE ; SURFACE-ENERGY ; TRANSITION ; BOUNDARY
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23497
Deposited By: Dr Richard P. Haley
Deposited On: 26 Jan 2009 10:54
Refereed?: Yes
Published?: Published
Last Modified: 17 Jul 2013 10:23
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23497

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