Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The thermal boundary resistance of the superfluid He-3 A-B phase interface in the low temperature limit.
AU - Bradley, D. Ian
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Haley, Richard P.
AU - Martin, Hazel
AU - Pickett, George R.
AU - Roberts, John Edward
AU - Tsepelin, Viktor
PY - 2006/9/7
Y1 - 2006/9/7
N2 - 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.
AB - 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.
KW - superfluid
KW - helium-3
KW - interface
U2 - 10.1063/1.2354617
DO - 10.1063/1.2354617
M3 - Journal article
VL - 850
SP - 87
EP - 88
JO - AIP Conference Proceedings
JF - AIP Conference Proceedings
SN - 0094-243X
ER -