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 0094-243XFull text not available from this repository.
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.
|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|
|Deposited By:||Dr Richard P. Haley|
|Deposited On:||26 Jan 2009 09:05|
|Last Modified:||17 Jul 2013 10:22|
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