Experimental observation of the vibration-rotation effect in He II
V. I. KolesnikPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovВ. А. МихеевPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovA. S. RybalkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovS. S. SokolovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kov
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Аннотация
The results of the experimental observation of the vibration-rotation effect in liquid He, predicted by Gurevich, Sonin, and Fomin, are presented. Rotation of the liquid was observed in both the normal and superconducting phases. The behavior of the angular rotational velocity as a function of the temperature was studied in the temperature interval 2.3–1.4 K. The experimental dependences Ω(T) obtained are described satisfactorily by a square root dependence on the viscosity. Analysis of the available data gives a basis for assuming that the superfluid component of He participates in the rotation.
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