Detection of the mutual transformation of first and second sounds at a He II-solid helium interface
V. N. Grigor’evPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , Khar'kovN. E. DyuminPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , Khar'kovS. V. SvatkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , Khar'kov
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Abstract
The mutual transformation of first and second sounds at an interface separating superfluid and solid helium has been detected in the temperature range from 1.72 to 1.46 °K.
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