Third sound detection of superfluid transitions in 3He-4He films |
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| Affiliation: | Laboratoire de Physique de la Matière Condensée, associé au CNRS (U.A. 190), Université de Nice, Parc Valrose, 06034 Nice Cedex, France |
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| Abstract: | Experiments in 3He4He films using the torsional oscillator method suggest the existence of two superfluid transitions. We only detect the low temperature superfluid transition TA by third sound velocity measurement, which raises the question of the existence of percolation between superfluid clusters at T>TA. |
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