Second-sound velocity in superfluid 3He–4He solutions
L. S. DikinaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRG. Ya. KotenevPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRÉ. Ya. Rudavskiı̆Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR
ABI
Abstract
The second-sound velocity was measured in superfluid 3He–4He solutions containing up to 13% 3He in the temperature range from 1.3°K to Tλ. Together with earlier experimental data, the results enabled us to construct the concentration dependence of the second-sound velocity in superfluid solutions. Comparison of the experimental values of the second-sound velocity with the results given by the theory of Khalatnikov1 showed good agreement.
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