Anisotropice superfluid fraction of3He A1 phase |
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Authors: | M Bastea H Kojima |
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Affiliation: | (1) Department of Physics and Astronomy, Rutgers University, 08855-0849 Piscataway, N.J., USA |
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Abstract: | The superfluid fraction of3He a1 phase is computed from measurements of the velocity of spin/entropy waves induced in a cylindrical chamber, for two different directions of the magnetic field: parallel and perpendicular to the axis of the chamber. The ratio of the superfluid fractions in the parallel and perpendicular orientations is 1.85, and does not depend on the field between 1 and 5 Tesla. We adapt a theoretical texture model to account for the superfluid flow, and the results are consistent with the above ratio and direct estimates of superfluid velocity. |
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