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 stability of the superfluid He-3 AB interface pinned in an aperture.
AU - Bartkowiak, M.
AU - Bradley, D. Ian
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Haley, Richard P.
AU - Pickett, George R.
AU - Skyba, P.
PY - 2004/1
Y1 - 2004/1
N2 - 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.
AB - 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.
KW - A-PHASE
KW - B-PHASE
KW - SURFACE-ENERGY
KW - TRANSITION
KW - BOUNDARY
U2 - 10.1023/B:JOLT.0000012584.41932.86
DO - 10.1023/B:JOLT.0000012584.41932.86
M3 - Journal article
VL - 134
SP - 387
EP - 392
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
SN - 0022-2291
IS - 1-2
ER -