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The thermal boundary resistance of the superfluid He-3 A-B phase interface in the low temperature limit.

Bradley, D. Ian and Fisher, Shaun N. and Guénault, A.M. and Haley, Richard P. and Martin, Hazel and Pickett, George R. and Roberts, John Edward and Tsepelin, Viktor (2006) The thermal boundary resistance of the superfluid He-3 A-B phase interface in the low temperature limit. American Institute of Physics Conference Proceedings, 850. pp. 87-88. ISSN 0094-243X

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Abstract

We have constructed a vertical cylindrical cell in which we cool superfluid He-3 to the low temperature limit. At the top and bottom of this cylinder are pairs of vibrating wire resonators (VWRs), one to act as a heater and the other as a thermometer. Quasiparticle excitations are created by driving the heater VWRs. These excitations can only leave the cylinder via a small hole at the top. Using a shaped magnetic field, we can produce a layer of A phase across the tube, while maintaining low field B phase in the vicinity of the VWRs for reliable thermometry. Preliminary results show that the two A-B interfaces lead to a measurable extra resistance for quasiparticles between the top and bottom of the cylinder.

Item Type: Article
Journal or Publication Title: American Institute of Physics Conference Proceedings
Uncontrolled Keywords: superfluid ; helium-3 ; interface
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23479
Deposited By: Dr Richard P. Haley
Deposited On: 26 Jan 2009 09:05
Refereed?: Yes
Published?: Published
Last Modified: 17 Jul 2013 10:22
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23479

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