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Density of the superfluid fraction near the λ point in He---He mixtures by oscillating disk method |
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| Authors: | R Mizuhara |
| Institution: | Department of Applied Physics, Tokyo University of Education, 3-29-1 Otsuka, Bunkyo-ku, Tokyo 112, Japan Department of Physics, University of Tsukuba, Sakuramura, Ibaraki 300-31, Japan a Department of Applied Physics, Tokyo University of Education, 3-29-1 Otsuka, Bunkyo-ku, Tokyo 112, Japan b Department of Physics, University of Tsukuba, Sakuramura, Ibaraki 300-31, Japan |
| Abstract: | The critical exponents ζ(X) and amplitudes κ(X) of superfluid fraction  s/λ in 3He---4He mixtures were determined by oscillating disk method approaching 10−4 K to lambda temperatures determined from velocity minima of first sound. |
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