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The influence of spin on second sound in superfluid3He-4He mixtures

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Abstract

The second-sound velocity of a superfluid mixture increases when a static and homogeneous magnetic field is applied. In particular, for dilute mixtures (molar3He concentration <0.1) and low temperatures, (0.1<T<0.6 K) the relative velocity increase is independent of concentration and is given by Δu 2/u 2≃5×10−16 B 2e T −2. It should be easily observed wheneverB e T −1is larger than 105 G K−1 and can lead to a novel measurement of the magnetic susceptibility.

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Authors and Affiliations

  1. Laboratoire d'Aérodynamique, Université Paris VI, Orsay Cedex, France

    Daniel Lhuillier & Maurice Francois

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  1. Daniel Lhuillier
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  2. Maurice Francois
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Lhuillier, D., Francois, M. The influence of spin on second sound in superfluid3He-4He mixtures. J Low Temp Phys 28, 473–482 (1977). https://doi.org/10.1007/BF00661443

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  • DOI: https://doi.org/10.1007/BF00661443

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