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Surface tension of liquid4He nearT λ

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Abstract

The surface tension of liquid4He in the neighborhood of the λ transition temperature was measured with very high precision by the surface-wave resonance method. The derivative of the surface tension with respect to temperature decreases by 21.1±0.8 mdyn/cm K as the temperature is increased from Tλ − 20 mK to Tλ + 20 mK. The regular part of the surface tension near Tλ is considered to consist of two parts, a ripplon contribution σR and a “bulk” contribution σB. In the present analysis, the singular part exists only below Tλ, and is proportional to (Tλ − T)1.3±0.1. This behavior seems to be related to the Bose-Einstein condensate or the superfluid density.

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Authors and Affiliations

  1. Institute for Solid State Physics, University of Tokyo, Tokyo, Japan

    M. Suzuki, M. Iino & A. J. Ikushima

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  1. M. Suzuki
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  2. M. Iino
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  3. A. J. Ikushima
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Suzuki, M., Iino, M. & Ikushima, A.J. Surface tension of liquid4He nearT λ . J Low Temp Phys 63, 129–137 (1986). https://doi.org/10.1007/BF00682066

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  • DOI: https://doi.org/10.1007/BF00682066

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