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The stability of the superfluid He-3 AB interface pinned in an aperture.

Bartkowiak, M. and Bradley, D. Ian and Fisher, Shaun N. and Guénault, A.M. and Haley, Richard P. and Pickett, George R. and Skyba, P. (2004) The stability of the superfluid He-3 AB interface pinned in an aperture. Journal of Low Temperature Physics, 134 (1-2). pp. 387-392. ISSN 0022-2291

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Abstract

We have been measuring the surface tension of the AB interface at zero pressure, in high magnetic fields and low temperatures below 0.2 T-c. We manipulate the phase boundary by controlling a magnetic field profile. We use the latent heat released/absorbed as the phase boundary moves to infer its position and velocity. We have observed that the motion of the interface through a small aperture is dependent on the magnetic field gradient. Here we extend numerical methods first used to calculate the shapes of liquid drops in a gravitational field to show that the gradient dependence can be accounted for by the deformation of the interface.

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: 23492
Deposited By: Dr Richard P. Haley
Deposited On: 26 Jan 2009 10:11
Refereed?: Yes
Published?: Published
Last Modified: 17 Jul 2013 10:23
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23492

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