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The stability of the superfluid He-3 AB interface pinned in an aperture.

Research output: Contribution to journalJournal article


Journal publication date01/2004
JournalJournal of Low Temperature Physics
Number of pages6
Original languageEnglish


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.