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 unique superfluid He-3 A-B interface: Surface tension and contact angle.
AU - Bartkowiak, M.
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Haley, Richard P.
AU - Pickett, George R.
AU - Rogge, M. C.
AU - Skyba, P.
PY - 2002/1
Y1 - 2002/1
N2 - We have measured the A-B boundary wall contact angle and the phase interface surface tension in superfluid He-3. The measurements have been made in the ballistic temperature regime at zero pressure in magnetic fields up to 400 mT. We infer the surface energies from the behaviour of the phase boundary moving in and out of a stack of glass capillary tubes. We measure the wall contact angle from the observed capillary height and obtain the interphase surface tension from the level of over- or under-magnetisation when the interface "pops" out of the capillaries. This is the first measurement of both the surface tension and contact angle in high magnetic fields.
AB - We have measured the A-B boundary wall contact angle and the phase interface surface tension in superfluid He-3. The measurements have been made in the ballistic temperature regime at zero pressure in magnetic fields up to 400 mT. We infer the surface energies from the behaviour of the phase boundary moving in and out of a stack of glass capillary tubes. We measure the wall contact angle from the observed capillary height and obtain the interphase surface tension from the level of over- or under-magnetisation when the interface "pops" out of the capillaries. This is the first measurement of both the surface tension and contact angle in high magnetic fields.
KW - A-PHASE
KW - B-PHASE
KW - SURFACE-ENERGY
KW - TRANSITION
KW - BOUNDARY
U2 - 10.1023/A:1013758916085
DO - 10.1023/A:1013758916085
M3 - Journal article
VL - 126
SP - 533
EP - 538
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
SN - 0022-2291
IS - 1-2
ER -